388942628 has 12 divisors (see below), whose sum is σ = 682429440. Its totient is φ = 193962792.

The previous prime is 388942553. The next prime is 388942633. The reversal of 388942628 is 826249883.

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, 125408 + ... + 128471.

It is an arithmetic number, because the mean of its divisors is an integer number (56869120).

Almost surely, 2^388942628 is an apocalyptic number.

It is an amenable number.

388942628 is a deficient number, since it is larger than the sum of its proper divisors (293486812).

388942628 is a wasteful number, since it uses less digits than its factorization.

388942628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254266 (or 254264 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 50.

The square root of 388942628 is about 19721.6284317497. The cubic root of 388942628 is about 729.9534767374.

The spelling of 388942628 in words is "three hundred eighty-eight million, nine hundred forty-two thousand, six hundred twenty-eight".