385322784 has 96 divisors (see below), whose sum is σ = 1261080576. Its totient is φ = 100081920.

The previous prime is 385322771. The next prime is 385322807. The reversal of 385322784 is 487223583.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18672 + ... + 33455.

It is an arithmetic number, because the mean of its divisors is an integer number (13136256).

Almost surely, 2^385322784 is an apocalyptic number.

It is an amenable number.

385322784 is an abundant number, since it is smaller than the sum of its proper divisors (875757792).

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

385322784 is a wasteful number, since it uses less digits than its factorization.

385322784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52158 (or 52150 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 385322784 is about 19629.6404450005. The cubic root of 385322784 is about 727.6818841175.

The spelling of 385322784 in words is "three hundred eighty-five million, three hundred twenty-two thousand, seven hundred eighty-four".