387856944 has 40 divisors (see below), whose sum is σ = 1113294320. Its totient is φ = 129285504.

The previous prime is 387856919. The next prime is 387856951. The reversal of 387856944 is 449658783.

387856944 is a `hidden beast` number, since 3 + 8 + 78 + 569 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448477 + ... + 449340.

It is an arithmetic number, because the mean of its divisors is an integer number (27832358).

Almost surely, 2^387856944 is an apocalyptic number.

It is an amenable number.

387856944 is an abundant number, since it is smaller than the sum of its proper divisors (725437376).

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

387856944 is a wasteful number, since it uses less digits than its factorization.

387856944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897834 (or 897822 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 387856944 is about 19694.0839847910. The cubic root of 387856944 is about 729.2736529574.

The spelling of 387856944 in words is "three hundred eighty-seven million, eight hundred fifty-six thousand, nine hundred forty-four".