722645484 has 24 divisors (see below), whose sum is σ = 1839461568. Its totient is φ = 218983440.

The previous prime is 722645477. The next prime is 722645491. The reversal of 722645484 is 484546227.

It is a happy number.

722645484 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (722645477) and next prime (722645491).

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, 2737162 + ... + 2737425.

It is an arithmetic number, because the mean of its divisors is an integer number (76644232).

Almost surely, 2^722645484 is an apocalyptic number.

It is an amenable number.

722645484 is an abundant number, since it is smaller than the sum of its proper divisors (1116816084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722645484 is a wasteful number, since it uses less digits than its factorization.

722645484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5474605 (or 5474603 counting only the distinct ones).

The product of its digits is 430080, while the sum is 42.

The square root of 722645484 is about 26882.0662152298. The cubic root of 722645484 is about 897.3773376434.

The spelling of 722645484 in words is "seven hundred twenty-two million, six hundred forty-five thousand, four hundred eighty-four".