722056724 has 12 divisors (see below), whose sum is σ = 1280909364. Its totient is φ = 356082624.

The previous prime is 722056721. The next prime is 722056787. The reversal of 722056724 is 427650227.

It can be written as a sum of positive squares in 2 ways, for example, as 295221124 + 426835600 = 17182^2 + 20660^2 .

It is a super-2 number, since 2×722056724² = 1042731825347224352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722056721) 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 3 ways as a sum of consecutive naturals, for example, 1236107 + ... + 1236690.

It is an arithmetic number, because the mean of its divisors is an integer number (106742447).

Almost surely, 2^722056724 is an apocalyptic number.

It is an amenable number.

722056724 is a deficient number, since it is larger than the sum of its proper divisors (558852640).

722056724 is a wasteful number, since it uses less digits than its factorization.

722056724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472874 (or 2472872 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 722056724 is about 26871.1131887014. The cubic root of 722056724 is about 897.1335650779.

The spelling of 722056724 in words is "seven hundred twenty-two million, fifty-six thousand, seven hundred twenty-four".