578921728 has 144 divisors (see below), whose sum is σ = 1476389376. Its totient is φ = 219985920.

The previous prime is 578921719. The next prime is 578921743. The reversal of 578921728 is 827129875.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

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, 847275 + ... + 847957.

It is an arithmetic number, because the mean of its divisors is an integer number (10252704).

Almost surely, 2^578921728 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 578921728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (738194688).

578921728 is an abundant number, since it is smaller than the sum of its proper divisors (897467648).

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

578921728 is a wasteful number, since it uses less digits than its factorization.

578921728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760 (or 746 counting only the distinct ones).

The product of its digits is 564480, while the sum is 49.

The square root of 578921728 is about 24060.7923394056. The cubic root of 578921728 is about 833.4379718559.

The spelling of 578921728 in words is "five hundred seventy-eight million, nine hundred twenty-one thousand, seven hundred twenty-eight".