389118492 has 120 divisors (see below), whose sum is σ = 1194229344. Its totient is φ = 108148608.

The previous prime is 389118487. The next prime is 389118493. The reversal of 389118492 is 294811983.

389118492 is a `hidden beast` number, since 389 + 1 + 184 + 92 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389118493) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 81598 + ... + 86234.

Almost surely, 2^389118492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389118492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (597114672).

389118492 is an abundant number, since it is smaller than the sum of its proper divisors (805110852).

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

389118492 is a wasteful number, since it uses less digits than its factorization.

389118492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4697 (or 4686 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 389118492 is about 19726.0865860413. The cubic root of 389118492 is about 730.0634785608.

The spelling of 389118492 in words is "three hundred eighty-nine million, one hundred eighteen thousand, four hundred ninety-two".