40311031432 has 32 divisors (see below), whose sum is σ = 88715401920. Its totient is φ = 16809232320.

The previous prime is 40311031399. The next prime is 40311031451. The reversal of 40311031432 is 23413011304.

It is a super-2 number, since 2×40311031432² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9725494 + ... + 9729637.

It is an arithmetic number, because the mean of its divisors is an integer number (2772356310).

Almost surely, 2^40311031432 is an apocalyptic number.

It is an amenable number.

40311031432 is an abundant number, since it is smaller than the sum of its proper divisors (48404370488).

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

40311031432 is a wasteful number, since it uses less digits than its factorization.

40311031432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19455181 (or 19455177 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 40311031432 its reverse (23413011304), we get a palindrome (63724042736).

The spelling of 40311031432 in words is "forty billion, three hundred eleven million, thirty-one thousand, four hundred thirty-two".