722334644 has 12 divisors (see below), whose sum is σ = 1264439904. Its totient is φ = 361066104.

The previous prime is 722334643. The next prime is 722334661. The reversal of 722334644 is 446433227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722334643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7922 + ... + 38825.

It is an arithmetic number, because the mean of its divisors is an integer number (105369992).

Almost surely, 2^722334644 is an apocalyptic number.

It is an amenable number.

722334644 is a deficient number, since it is larger than the sum of its proper divisors (542105260).

722334644 is a wasteful number, since it uses less digits than its factorization.

722334644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50614 (or 50612 counting only the distinct ones).

The product of its digits is 96768, while the sum is 35.

The square root of 722334644 is about 26876.2840437438. The cubic root of 722334644 is about 897.2486527017.

The spelling of 722334644 in words is "seven hundred twenty-two million, three hundred thirty-four thousand, six hundred forty-four".