388253924 has 6 divisors (see below), whose sum is σ = 679444374. Its totient is φ = 194126960.

The previous prime is 388253917. The next prime is 388253933. The reversal of 388253924 is 429352883.

It can be written as a sum of positive squares in only one way, i.e., 267649600 + 120604324 = 16360^2 + 10982^2 .

It is a super-2 number, since 2×388253924² = 301482219002795552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48531737 + ... + 48531744.

It is an arithmetic number, because the mean of its divisors is an integer number (113240729).

Almost surely, 2^388253924 is an apocalyptic number.

It is an amenable number.

388253924 is a deficient number, since it is larger than the sum of its proper divisors (291190450).

388253924 is a wasteful number, since it uses less digits than its factorization.

388253924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97063485 (or 97063483 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The square root of 388253924 is about 19704.1600683713. The cubic root of 388253924 is about 729.5223772556.

The spelling of 388253924 in words is "three hundred eighty-eight million, two hundred fifty-three thousand, nine hundred twenty-four".