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40220411240 = 23541131187211
BaseRepresentation
bin100101011101010100…
…101100010101101000
310211211000210120212202
4211131110230111220
51124332411124430
630251010555332
72622461566112
oct453524542550
9124730716782
1040220411240
111606a412299
127965898b48
133a3c935209
141d379843b2
1510a6023d45
hex95d52c568

40220411240 has 64 divisors (see below), whose sum is σ = 93411299520. Its totient is φ = 15575872000.

The previous prime is 40220411239. The next prime is 40220411261. The reversal of 40220411240 is 4211402204.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121235 + ... + 308445.

It is an arithmetic number, because the mean of its divisors is an integer number (1459551555).

Almost surely, 240220411240 is an apocalyptic number.

40220411240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40220411240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46705649760).

40220411240 is an abundant number, since it is smaller than the sum of its proper divisors (53190888280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40220411240 is a wasteful number, since it uses less digits than its factorization.

40220411240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187394 (or 187390 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 40220411240 its reverse (4211402204), we get a palindrome (44431813444).

The spelling of 40220411240 in words is "forty billion, two hundred twenty million, four hundred eleven thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 41 82 131 164 205 262 328 410 524 655 820 1048 1310 1640 2620 5240 5371 10742 21484 26855 42968 53710 107420 187211 214840 374422 748844 936055 1497688 1872110 3744220 7488440 7675651 15351302 24524641 30702604 38378255 49049282 61405208 76756510 98098564 122623205 153513020 196197128 245246410 307026040 490492820 980985640 1005510281 2011020562 4022041124 5027551405 8044082248 10055102810 20110205620 40220411240