722023144 has 32 divisors (see below), whose sum is σ = 1386039240. Its totient is φ = 352512000.

The previous prime is 722023109. The next prime is 722023147. The reversal of 722023144 is 441320227.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 695376900 + 26646244 = 26370^2 + 5162^2 .

It is not an unprimeable number, because it can be changed into a prime (722023147) by changing a digit.

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, 52864 + ... + 65104.

Almost surely, 2^722023144 is an apocalyptic number.

It is an amenable number.

722023144 is a deficient number, since it is larger than the sum of its proper divisors (664016096).

722023144 is a wasteful number, since it uses less digits than its factorization.

722023144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12421 (or 12417 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 722023144 is about 26870.4883468835. The cubic root of 722023144 is about 897.1196574853.

The spelling of 722023144 in words is "seven hundred twenty-two million, twenty-three thousand, one hundred forty-four".