388870536 has 32 divisors (see below), whose sum is σ = 977558400. Its totient is φ = 128905920.

The previous prime is 388870523. The next prime is 388870553. The reversal of 388870536 is 635078883.

It is a happy 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, 40416 + ... + 49103.

It is an arithmetic number, because the mean of its divisors is an integer number (30548700).

Almost surely, 2^388870536 is an apocalyptic number.

It is an amenable number.

388870536 is an abundant number, since it is smaller than the sum of its proper divisors (588687864).

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

388870536 is a wasteful number, since it uses less digits than its factorization.

388870536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89709 (or 89705 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The square root of 388870536 is about 19719.8006075112. The cubic root of 388870536 is about 729.9083740633.

The spelling of 388870536 in words is "three hundred eighty-eight million, eight hundred seventy thousand, five hundred thirty-six".