388914980 has 12 divisors (see below), whose sum is σ = 816721500. Its totient is φ = 155565984.

The previous prime is 388914973. The next prime is 388914997. The reversal of 388914980 is 89419883.

It can be written as a sum of positive squares in 2 ways, for example, as 46812964 + 342102016 = 6842^2 + 18496^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

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, 9722855 + ... + 9722894.

It is an arithmetic number, because the mean of its divisors is an integer number (68060125).

Almost surely, 2^388914980 is an apocalyptic number.

It is an amenable number.

388914980 is an abundant number, since it is smaller than the sum of its proper divisors (427806520).

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

388914980 is a wasteful number, since it uses less digits than its factorization.

388914980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19445758 (or 19445756 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 388914980 is about 19720.9274629770. The cubic root of 388914980 is about 729.9361800716.

The spelling of 388914980 in words is "three hundred eighty-eight million, nine hundred fourteen thousand, nine hundred eighty".