730072132 has 6 divisors (see below), whose sum is σ = 1277626238. Its totient is φ = 365036064.

The previous prime is 730072111. The next prime is 730072159. The reversal of 730072132 is 231270037.

It can be written as a sum of positive squares in only one way, i.e., 622203136 + 107868996 = 24944^2 + 10386^2 .

It is a junction number, because it is equal to n+sod(n) for n = 730072097 and 730072106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91259013 + ... + 91259020.

Almost surely, 2^730072132 is an apocalyptic number.

It is an amenable number.

730072132 is a deficient number, since it is larger than the sum of its proper divisors (547554106).

730072132 is a wasteful number, since it uses less digits than its factorization.

730072132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182518037 (or 182518035 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 730072132 is about 27019.8470017874. The cubic root of 730072132 is about 900.4409904684.

The spelling of 730072132 in words is "seven hundred thirty million, seventy-two thousand, one hundred thirty-two".