388928016 has 60 divisors (see below), whose sum is σ = 1117891372. Its totient is φ = 126137088.

The previous prime is 388927937. The next prime is 388928017. The reversal of 388928016 is 610829883.

It can be written as a sum of positive squares in 2 ways, for example, as 246364416 + 142563600 = 15696^2 + 11940^2 .

It is not an unprimeable number, because it can be changed into a prime (388928017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31171 + ... + 41826.

Almost surely, 2^388928016 is an apocalyptic number.

388928016 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

388928016 is an abundant number, since it is smaller than the sum of its proper divisors (728963356).

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

388928016 is a wasteful number, since it uses less digits than its factorization.

388928016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73048 (or 73039 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 388928016 is about 19721.2579720463. The cubic root of 388928016 is about 729.9443355316.

The spelling of 388928016 in words is "three hundred eighty-eight million, nine hundred twenty-eight thousand, sixteen".