40131304432 has 10 divisors (see below), whose sum is σ = 77754402368. Its totient is φ = 20065652208.

The previous prime is 40131304399. The next prime is 40131304469. The reversal of 40131304432 is 23440313104.

It is a super-2 number, since 2×40131304432² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40131304397 and 40131304406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1254103248 + ... + 1254103279.

Almost surely, 2^40131304432 is an apocalyptic number.

It is an amenable number.

40131304432 is a deficient number, since it is larger than the sum of its proper divisors (37623097936).

40131304432 is a wasteful number, since it uses less digits than its factorization.

40131304432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508206535 (or 2508206529 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 40131304432 its reverse (23440313104), we get a palindrome (63571617536).

The spelling of 40131304432 in words is "forty billion, one hundred thirty-one million, three hundred four thousand, four hundred thirty-two".