390131432752 has 20 divisors (see below), whose sum is σ = 766525845456. Its totient is φ = 192318311360.

The previous prime is 390131432711. The next prime is 390131432827. The reversal of 390131432752 is 257234131093.

It is a happy number.

It is a super-2 number, since 2×390131432752² (a number of 24 digits) contains 22 as substring.

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, 171711643 + ... + 171713914.

Almost surely, 2^390131432752 is an apocalyptic number.

It is an amenable number.

390131432752 is a deficient number, since it is larger than the sum of its proper divisors (376394412704).

390131432752 is a wasteful number, since it uses less digits than its factorization.

390131432752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343425636 (or 343425630 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The spelling of 390131432752 in words is "three hundred ninety billion, one hundred thirty-one million, four hundred thirty-two thousand, seven hundred fifty-two".