389284392 has 32 divisors (see below), whose sum is σ = 1112241600. Its totient is φ = 111224064.

The previous prime is 389284387. The next prime is 389284393. The reversal of 389284392 is 293482983.

It is not an unprimeable number, because it can be changed into a prime (389284393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1158417 + ... + 1158752.

It is an arithmetic number, because the mean of its divisors is an integer number (34757550).

Almost surely, 2^389284392 is an apocalyptic number.

It is an amenable number.

389284392 is an abundant number, since it is smaller than the sum of its proper divisors (722957208).

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

389284392 is a wasteful number, since it uses less digits than its factorization.

389284392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317185 (or 2317181 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The square root of 389284392 is about 19730.2912294776. The cubic root of 389284392 is about 730.1672175888.

The spelling of 389284392 in words is "three hundred eighty-nine million, two hundred eighty-four thousand, three hundred ninety-two".