389044480 has 72 divisors (see below), whose sum is σ = 1016636544. Its totient is φ = 141465600.

The previous prime is 389044463. The next prime is 389044499. The reversal of 389044480 is 84440983.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265 + ... + 27895.

It is an arithmetic number, because the mean of its divisors is an integer number (14119952).

Almost surely, 2^389044480 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 389044480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (508318272).

389044480 is an abundant number, since it is smaller than the sum of its proper divisors (627592064).

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

389044480 is a wasteful number, since it uses less digits than its factorization.

389044480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27663 (or 27649 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 389044480 is about 19724.2105038453. The cubic root of 389044480 is about 730.0171885613.

The spelling of 389044480 in words is "three hundred eighty-nine million, forty-four thousand, four hundred eighty".