730345988 has 12 divisors (see below), whose sum is σ = 1319334912. Its totient is φ = 353393160.

The previous prime is 730345951. The next prime is 730346009. The reversal of 730345988 is 889543037.

It is a super-2 number, since 2×730345988² = 1066810524375392288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2944820 + ... + 2945067.

It is an arithmetic number, because the mean of its divisors is an integer number (109944576).

Almost surely, 2^730345988 is an apocalyptic number.

It is an amenable number.

730345988 is a deficient number, since it is larger than the sum of its proper divisors (588988924).

730345988 is a wasteful number, since it uses less digits than its factorization.

730345988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5889922 (or 5889920 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 730345988 is about 27024.9142089295. The cubic root of 730345988 is about 900.5535639757.

The spelling of 730345988 in words is "seven hundred thirty million, three hundred forty-five thousand, nine hundred eighty-eight".