730057220 has 24 divisors (see below), whose sum is σ = 1536796800. Its totient is φ = 291322592.

The previous prime is 730057219. The next prime is 730057247. The reversal of 730057220 is 22750037.

It is a self number, because there is not a number n which added to its sum of digits gives 730057220.

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, 35180 + ... + 51939.

It is an arithmetic number, because the mean of its divisors is an integer number (64033200).

Almost surely, 2^730057220 is an apocalyptic number.

It is an amenable number.

730057220 is an abundant number, since it is smaller than the sum of its proper divisors (806739580).

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

730057220 is a wasteful number, since it uses less digits than its factorization.

730057220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87547 (or 87545 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 730057220 is about 27019.5710550704. The cubic root of 730057220 is about 900.4348598105.

The spelling of 730057220 in words is "seven hundred thirty million, fifty-seven thousand, two hundred twenty".