578238780 has 96 divisors (see below), whose sum is σ = 1947778560. Its totient is φ = 125210880.

The previous prime is 578238779. The next prime is 578238809. The reversal of 578238780 is 87832875.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28251 + ... + 44210.

It is an arithmetic number, because the mean of its divisors is an integer number (20289360).

Almost surely, 2^578238780 is an apocalyptic number.

It is an amenable number.

578238780 is an abundant number, since it is smaller than the sum of its proper divisors (1369539780).

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

578238780 is a wasteful number, since it uses less digits than its factorization.

578238780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72499 (or 72497 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 48.

The square root of 578238780 is about 24046.5960169002. The cubic root of 578238780 is about 833.1101101666.

The spelling of 578238780 in words is "five hundred seventy-eight million, two hundred thirty-eight thousand, seven hundred eighty".