387889256 has 16 divisors (see below), whose sum is σ = 765571200. Its totient is φ = 183736944.

The previous prime is 387889219. The next prime is 387889291. The reversal of 387889256 is 652988783.

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, 1275800 + ... + 1276103.

It is an arithmetic number, because the mean of its divisors is an integer number (47848200).

Almost surely, 2^387889256 is an apocalyptic number.

It is an amenable number.

387889256 is a deficient number, since it is larger than the sum of its proper divisors (377681944).

387889256 is a wasteful number, since it uses less digits than its factorization.

387889256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551928 (or 2551924 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 56.

The square root of 387889256 is about 19694.9043155838. The cubic root of 387889256 is about 729.2939040975.

The spelling of 387889256 in words is "three hundred eighty-seven million, eight hundred eighty-nine thousand, two hundred fifty-six".