388696512 has 56 divisors (see below), whose sum is σ = 1063904400. Its totient is φ = 125095936.

The previous prime is 388696501. The next prime is 388696513. The reversal of 388696512 is 215696883.

It is a happy number.

It is a super-2 number, since 2×388696512² = 302169956881932288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388696513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29337 + ... + 40472.

Almost surely, 2^388696512 is an apocalyptic number.

388696512 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

388696512 is an abundant number, since it is smaller than the sum of its proper divisors (675207888).

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

388696512 is a wasteful number, since it uses less digits than its factorization.

388696512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69853 (or 69843 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 388696512 is about 19715.3876959090. The cubic root of 388696512 is about 729.7994770434.

The spelling of 388696512 in words is "three hundred eighty-eight million, six hundred ninety-six thousand, five hundred twelve".