578641920 has 224 divisors, whose sum is σ = 1967532768. Its totient is φ = 144703488.

The previous prime is 578641909. The next prime is 578641991. The reversal of 578641920 is 29146875.

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, 2088822 + ... + 2089098.

Almost surely, 2^578641920 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 578641920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (983766384).

578641920 is an abundant number, since it is smaller than the sum of its proper divisors (1388890848).

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

578641920 is a wasteful number, since it uses less digits than its factorization.

578641920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 578641920 is about 24054.9770317912. The cubic root of 578641920 is about 833.3036761001.

The spelling of 578641920 in words is "five hundred seventy-eight million, six hundred forty-one thousand, nine hundred twenty".