388625000 has 56 divisors (see below), whose sum is σ = 911121150. Its totient is φ = 155400000.

The previous prime is 388624979. The next prime is 388625047. The reversal of 388625000 is 526883.

It can be written as a sum of positive squares in 7 ways, for example, as 272976484 + 115648516 = 16522^2 + 10754^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 123446 + ... + 126554.

Almost surely, 2^388625000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388625000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455560575).

388625000 is an abundant number, since it is smaller than the sum of its proper divisors (522496150).

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

388625000 is an frugal number, since it uses more digits than its factorization.

388625000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145 (or 3116 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 388625000 is about 19713.5740037163. The cubic root of 388625000 is about 729.7547183697.

The spelling of 388625000 in words is "three hundred eighty-eight million, six hundred twenty-five thousand".