388432972 has 24 divisors (see below), whose sum is σ = 695241792. Its totient is φ = 189820800.

The previous prime is 388432963. The next prime is 388432981. The reversal of 388432972 is 279234883.

It is an interprime number because it is at equal distance from previous prime (388432963) and next prime (388432981).

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, 54072 + ... + 60832.

It is an arithmetic number, because the mean of its divisors is an integer number (28968408).

Almost surely, 2^388432972 is an apocalyptic number.

It is an amenable number.

388432972 is a deficient number, since it is larger than the sum of its proper divisors (306808820).

388432972 is a wasteful number, since it uses less digits than its factorization.

388432972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7089 (or 7087 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 388432972 is about 19708.7029507271. The cubic root of 388432972 is about 729.6345027150.

It can be divided in two parts, 3884 and 32972, that added together give a triangular number (36856 = T₂₇₁).

The spelling of 388432972 in words is "three hundred eighty-eight million, four hundred thirty-two thousand, nine hundred seventy-two".