388774164 has 24 divisors (see below), whose sum is σ = 907895520. Its totient is φ = 129483424.

The previous prime is 388774153. The next prime is 388774171. The reversal of 388774164 is 461477883.

It is a super-2 number, since 2×388774164² = 302290701187797792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2242 + ... + 27974.

It is an arithmetic number, because the mean of its divisors is an integer number (37828980).

Almost surely, 2^388774164 is an apocalyptic number.

It is an amenable number.

388774164 is an abundant number, since it is smaller than the sum of its proper divisors (519121356).

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

388774164 is a wasteful number, since it uses less digits than its factorization.

388774164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26999 (or 26997 counting only the distinct ones).

The product of its digits is 903168, while the sum is 48.

The square root of 388774164 is about 19717.3569222652. The cubic root of 388774164 is about 729.8480724676.

The spelling of 388774164 in words is "three hundred eighty-eight million, seven hundred seventy-four thousand, one hundred sixty-four".