730391560 has 32 divisors (see below), whose sum is σ = 1658467800. Its totient is φ = 289474560.

The previous prime is 730391549. The next prime is 730391573. The reversal of 730391560 is 65193037.

It can be written as a sum of positive squares in 4 ways, for example, as 628906084 + 101485476 = 25078^2 + 10074^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79401 + ... + 88120.

Almost surely, 2^730391560 is an apocalyptic number.

It is an amenable number.

730391560 is an abundant number, since it is smaller than the sum of its proper divisors (928076240).

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

730391560 is a wasteful number, since it uses less digits than its factorization.

730391560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167641 (or 167637 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 730391560 is about 27025.7573436897. The cubic root of 730391560 is about 900.5722944469.

The spelling of 730391560 in words is "seven hundred thirty million, three hundred ninety-one thousand, five hundred sixty".