730268720 has 40 divisors (see below), whose sum is σ = 1756427760. Its totient is φ = 282033920.

The previous prime is 730268689. The next prime is 730268723. The reversal of 730268720 is 27862037.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (730268723) by changing a digit.

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, 155066 + ... + 159705.

It is an arithmetic number, because the mean of its divisors is an integer number (43910694).

Almost surely, 2^730268720 is an apocalyptic number.

It is an amenable number.

730268720 is an abundant number, since it is smaller than the sum of its proper divisors (1026159040).

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

730268720 is a wasteful number, since it uses less digits than its factorization.

730268720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314813 (or 314807 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 730268720 is about 27023.4846013611. The cubic root of 730268720 is about 900.5218044043.

The spelling of 730268720 in words is "seven hundred thirty million, two hundred sixty-eight thousand, seven hundred twenty".