385188688 has 40 divisors (see below), whose sum is σ = 769736448. Its totient is φ = 186628992.

The previous prime is 385188679. The next prime is 385188719. The reversal of 385188688 is 886881583.

It is a happy number.

It is a super-2 number, since 2×385188688² = 296740650726322688, which contains 22 as substring.

It is a congruent number.

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, 74970 + ... + 79942.

Almost surely, 2^385188688 is an apocalyptic number.

It is an amenable number.

385188688 is a deficient number, since it is larger than the sum of its proper divisors (384547760).

385188688 is a wasteful number, since it uses less digits than its factorization.

385188688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5131 (or 5125 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 55.

The square root of 385188688 is about 19626.2244968308. The cubic root of 385188688 is about 727.5974609138.

The spelling of 385188688 in words is "three hundred eighty-five million, one hundred eighty-eight thousand, six hundred eighty-eight".