388974536 has 16 divisors (see below), whose sum is σ = 767713200. Its totient is φ = 184251024.

The previous prime is 388974529. The next prime is 388974557. The reversal of 388974536 is 635479883.

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, 1279370 + ... + 1279673.

It is an arithmetic number, because the mean of its divisors is an integer number (47982075).

Almost surely, 2^388974536 is an apocalyptic number.

It is an amenable number.

388974536 is a deficient number, since it is larger than the sum of its proper divisors (378738664).

388974536 is a wasteful number, since it uses less digits than its factorization.

388974536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559068 (or 2559064 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 53.

The square root of 388974536 is about 19722.4373747263. The cubic root of 388974536 is about 729.9734374522.

The spelling of 388974536 in words is "three hundred eighty-eight million, nine hundred seventy-four thousand, five hundred thirty-six".