389965460 has 48 divisors (see below), whose sum is σ = 867355776. Its totient is φ = 146965632.

The previous prime is 389965447. The next prime is 389965517. The reversal of 389965460 is 64569983.

It is a junction number, because it is equal to n+sod(n) for n = 389965399 and 389965408.

It is a congruent number.

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, 24494 + ... + 37146.

It is an arithmetic number, because the mean of its divisors is an integer number (18069912).

Almost surely, 2^389965460 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 389965460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (433677888).

389965460 is an abundant number, since it is smaller than the sum of its proper divisors (477390316).

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

389965460 is a wasteful number, since it uses less digits than its factorization.

389965460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12752 (or 12750 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 50.

The square root of 389965460 is about 19747.5431383248. The cubic root of 389965460 is about 730.5927880345.

The spelling of 389965460 in words is "three hundred eighty-nine million, nine hundred sixty-five thousand, four hundred sixty".