389070864 has 200 divisors, whose sum is σ = 1386369600. Its totient is φ = 102580992.

The previous prime is 389070797. The next prime is 389070889. The reversal of 389070864 is 468070983.

It is a happy number.

It is a super-2 number, since 2×389070864² = 302752274427412992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 116287 + ... + 119585.

It is an arithmetic number, because the mean of its divisors is an integer number (6931848).

Almost surely, 2^389070864 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 389070864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (693184800).

389070864 is an abundant number, since it is smaller than the sum of its proper divisors (997298736).

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

389070864 is a wasteful number, since it uses less digits than its factorization.

389070864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339 (or 3324 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 389070864 is about 19724.8793152202. The cubic root of 389070864 is about 730.0336908201.

The spelling of 389070864 in words is "three hundred eighty-nine million, seventy thousand, eight hundred sixty-four".