722120008 has 8 divisors (see below), whose sum is σ = 1353975030. Its totient is φ = 361060000.

The previous prime is 722119997. The next prime is 722120017. The reversal of 722120008 is 800021227.

It can be written as a sum of positive squares in only one way, i.e., 626901444 + 95218564 = 25038^2 + 9758^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 45132493 + ... + 45132508.

Almost surely, 2^722120008 is an apocalyptic number.

It is an amenable number.

722120008 is a deficient number, since it is larger than the sum of its proper divisors (631855022).

722120008 is a wasteful number, since it uses less digits than its factorization.

722120008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90265007 (or 90265003 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 722120008 is about 26872.2907099488. The cubic root of 722120008 is about 897.1597737953.

The spelling of 722120008 in words is "seven hundred twenty-two million, one hundred twenty thousand, eight".