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40404037338 = 2327320666963
BaseRepresentation
bin100101101000010001…
…001010111011011010
310212021211022202112100
4211220101022323122
51130221413143323
630321130424230
72630151436140
oct455021127332
9125254282470
1040404037338
11161540312a5
1279b7292076
133a6b9a8702
141d54103590
1510b71e6943
hex96844aeda

40404037338 has 24 divisors (see below), whose sum is σ = 100048092768. Its totient is φ = 11544010632.

The previous prime is 40404037337. The next prime is 40404037381. The reversal of 40404037338 is 83373040404.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40404037337) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 160333356 + ... + 160333607.

It is an arithmetic number, because the mean of its divisors is an integer number (4168670532).

Almost surely, 240404037338 is an apocalyptic number.

40404037338 is an abundant number, since it is smaller than the sum of its proper divisors (59644055430).

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

40404037338 is a wasteful number, since it uses less digits than its factorization.

40404037338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320666978 (or 320666975 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The spelling of 40404037338 in words is "forty billion, four hundred four million, thirty-seven thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 320666963 641333926 962000889 1924001778 2244668741 2886002667 4489337482 5772005334 6734006223 13468012446 20202018669 40404037338