388774072 has 16 divisors (see below), whose sum is σ = 737143200. Its totient is φ = 192202560.

The previous prime is 388774049. The next prime is 388774073. The reversal of 388774072 is 270477883.

It is a super-2 number, since 2×388774072² = 302290558118922368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388774073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272304 + ... + 273727.

It is an arithmetic number, because the mean of its divisors is an integer number (46071450).

Almost surely, 2^388774072 is an apocalyptic number.

It is an amenable number.

388774072 is a deficient number, since it is larger than the sum of its proper divisors (348369128).

388774072 is a wasteful number, since it uses less digits than its factorization.

388774072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546126 (or 546122 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 46.

The square root of 388774072 is about 19717.3545892952. The cubic root of 388774072 is about 729.8480148969.

The spelling of 388774072 in words is "three hundred eighty-eight million, seven hundred seventy-four thousand, seventy-two".