40040620432 has 20 divisors (see below), whose sum is σ = 77592970240. Its totient is φ = 20016628128.

The previous prime is 40040620381. The next prime is 40040620547. The reversal of 40040620432 is 23402604004.

It is a junction number, because it is equal to n+sod(n) for n = 40040620397 and 40040620406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139332 + ... + 315427.

It is an arithmetic number, because the mean of its divisors is an integer number (3879648512).

Almost surely, 2^40040620432 is an apocalyptic number.

It is an amenable number.

40040620432 is a deficient number, since it is larger than the sum of its proper divisors (37552349808).

40040620432 is a wasteful number, since it uses less digits than its factorization.

40040620432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460270 (or 460264 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The spelling of 40040620432 in words is "forty billion, forty million, six hundred twenty thousand, four hundred thirty-two".