722130188 has 24 divisors (see below), whose sum is σ = 1432567920. Its totient is φ = 315748800.

The previous prime is 722130179. The next prime is 722130191. The reversal of 722130188 is 881031227.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364463 + ... + 366438.

It is an arithmetic number, because the mean of its divisors is an integer number (59690330).

Almost surely, 2^722130188 is an apocalyptic number.

It is an amenable number.

722130188 is a deficient number, since it is larger than the sum of its proper divisors (710437732).

722130188 is a wasteful number, since it uses less digits than its factorization.

722130188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730937 (or 730935 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 722130188 is about 26872.4801237251. The cubic root of 722130188 is about 897.1639896428.

The spelling of 722130188 in words is "seven hundred twenty-two million, one hundred thirty thousand, one hundred eighty-eight".