389465424 has 60 divisors (see below), whose sum is σ = 1102245300. Its totient is φ = 128358912.

The previous prime is 389465407. The next prime is 389465471. The reversal of 389465424 is 424564983.

It can be written as a sum of positive squares in 2 ways, for example, as 169833024 + 219632400 = 13032^2 + 14820^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 389465424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2379 + ... + 28010.

It is an arithmetic number, because the mean of its divisors is an integer number (18370755).

Almost surely, 2^389465424 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 389465424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (551122650).

389465424 is an abundant number, since it is smaller than the sum of its proper divisors (712779876).

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

389465424 is a wasteful number, since it uses less digits than its factorization.

389465424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30492 (or 30483 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 389465424 is about 19734.8783629391. The cubic root of 389465424 is about 730.2803851937.

The spelling of 389465424 in words is "three hundred eighty-nine million, four hundred sixty-five thousand, four hundred twenty-four".