722918444 has 24 divisors (see below), whose sum is σ = 1274196000. Its totient is φ = 358871040.

The previous prime is 722918423. The next prime is 722918453. The reversal of 722918444 is 444819227.

722918444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×722918444² = 1045222153350762272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611534 + ... + 612714.

It is an arithmetic number, because the mean of its divisors is an integer number (53091500).

Almost surely, 2^722918444 is an apocalyptic number.

It is an amenable number.

722918444 is a deficient number, since it is larger than the sum of its proper divisors (551277556).

722918444 is a wasteful number, since it uses less digits than its factorization.

722918444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153 (or 2151 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 722918444 is about 26887.1427265896. The cubic root of 722918444 is about 897.4903101816.

The spelling of 722918444 in words is "seven hundred twenty-two million, nine hundred eighteen thousand, four hundred forty-four".