730161028 has 6 divisors (see below), whose sum is σ = 1277781806. Its totient is φ = 365080512.

The previous prime is 730161007. The next prime is 730161031. The reversal of 730161028 is 820161037.

730161028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 713530944 + 16630084 = 26712^2 + 4078^2 .

It is a junction number, because it is equal to n+sod(n) for n = 730160987 and 730161005.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91270125 + ... + 91270132.

Almost surely, 2^730161028 is an apocalyptic number.

It is an amenable number.

730161028 is a deficient number, since it is larger than the sum of its proper divisors (547620778).

730161028 is a wasteful number, since it uses less digits than its factorization.

730161028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182540261 (or 182540259 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 730161028 is about 27021.4919647306. The cubic root of 730161028 is about 900.4775358772.

Subtracting 730161028 from its reverse (820161037), we obtain a palindrome (90000009).

The spelling of 730161028 in words is "seven hundred thirty million, one hundred sixty-one thousand, twenty-eight".