578734728 has 64 divisors (see below), whose sum is σ = 1699790400. Its totient is φ = 161882880.

The previous prime is 578734679. The next prime is 578734733. The reversal of 578734728 is 827437875.

It is a happy 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, 80883 + ... + 87746.

It is an arithmetic number, because the mean of its divisors is an integer number (26559225).

Almost surely, 2^578734728 is an apocalyptic number.

It is an amenable number.

578734728 is an abundant number, since it is smaller than the sum of its proper divisors (1121055672).

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

578734728 is a wasteful number, since it uses less digits than its factorization.

578734728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168662 (or 168658 counting only the distinct ones).

The product of its digits is 2634240, while the sum is 51.

The square root of 578734728 is about 24056.9060354818. The cubic root of 578734728 is about 833.3482247294.

The spelling of 578734728 in words is "five hundred seventy-eight million, seven hundred thirty-four thousand, seven hundred twenty-eight".