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2404421240 = 2351313733751
BaseRepresentation
bin1000111101010000…
…1000111001111000
320012120100020212112
42033110020321320
514411012434430
61034331031452
7113404146314
oct21724107170
96176306775
102404421240
1110242622a1
1257129b588
132c41a6180
1418b490b44
15e114b195
hex8f508e78

2404421240 has 64 divisors (see below), whose sum is σ = 5868797760. Its totient is φ = 881280000.

The previous prime is 2404421203. The next prime is 2404421249. The reversal of 2404421240 is 421244042.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2404421249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54365 + ... + 88115.

It is an arithmetic number, because the mean of its divisors is an integer number (91699965).

Almost surely, 22404421240 is an apocalyptic number.

2404421240 is a gapful number since it is divisible by the number (20) 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 2404421240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2934398880).

2404421240 is an abundant number, since it is smaller than the sum of its proper divisors (3464376520).

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

2404421240 is a wasteful number, since it uses less digits than its factorization.

2404421240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33912 (or 33908 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 2404421240 is about 49034.8981848642. The cubic root of 2404421240 is about 1339.6875413151.

Adding to 2404421240 its reverse (421244042), we get a palindrome (2825665282).

The spelling of 2404421240 in words is "two billion, four hundred four million, four hundred twenty-one thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 137 260 274 520 548 685 1096 1370 1781 2740 3562 5480 7124 8905 14248 17810 33751 35620 67502 71240 135004 168755 270008 337510 438763 675020 877526 1350040 1755052 2193815 3510104 4387630 4623887 8775260 9247774 17550520 18495548 23119435 36991096 46238870 60110531 92477740 120221062 184955480 240442124 300552655 480884248 601105310 1202210620 2404421240