385874784 has 36 divisors (see below), whose sum is σ = 1097332236. Its totient is φ = 128624832.

The previous prime is 385874767. The next prime is 385874807. The reversal of 385874784 is 487478583.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 385874784.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 669634 + ... + 670209.

It is an arithmetic number, because the mean of its divisors is an integer number (30481451).

Almost surely, 2^385874784 is an apocalyptic number.

It is an amenable number.

385874784 is an abundant number, since it is smaller than the sum of its proper divisors (711457452).

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

385874784 is a wasteful number, since it uses less digits than its factorization.

385874784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339859 (or 1339848 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 54.

The square root of 385874784 is about 19643.6957826169. The cubic root of 385874784 is about 728.0292022259.

The spelling of 385874784 in words is "three hundred eighty-five million, eight hundred seventy-four thousand, seven hundred eighty-four".