389513400 has 96 divisors (see below), whose sum is σ = 1224170160. Its totient is φ = 102435840.

The previous prime is 389513387. The next prime is 389513417. The reversal of 389513400 is 4315983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39354 + ... + 48246.

Almost surely, 2^389513400 is an apocalyptic number.

389513400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389513400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (612085080).

389513400 is an abundant number, since it is smaller than the sum of its proper divisors (834656760).

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

389513400 is a wasteful number, since it uses less digits than its factorization.

389513400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8985 (or 8976 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 389513400 is about 19736.0938384474. The cubic root of 389513400 is about 730.3103703059.

The spelling of 389513400 in words is "three hundred eighty-nine million, five hundred thirteen thousand, four hundred".