722225764 has 24 divisors (see below), whose sum is σ = 1392776000. Its totient is φ = 325581984.

The previous prime is 722225761. The next prime is 722225767. The reversal of 722225764 is 467522227.

It is an interprime number because it is at equal distance from previous prime (722225761) and next prime (722225767).

It is a super-2 number, since 2×722225764² = 1043220108370767392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (722225761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159264 + ... + 163735.

Almost surely, 2^722225764 is an apocalyptic number.

It is an amenable number.

722225764 is a deficient number, since it is larger than the sum of its proper divisors (670550236).

722225764 is a wasteful number, since it uses less digits than its factorization.

722225764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323059 (or 323057 counting only the distinct ones).

The product of its digits is 94080, while the sum is 37.

The square root of 722225764 is about 26874.2583897677. The cubic root of 722225764 is about 897.2035686385.

The spelling of 722225764 in words is "seven hundred twenty-two million, two hundred twenty-five thousand, seven hundred sixty-four".