722554536 has 64 divisors (see below), whose sum is σ = 2086534080. Its totient is φ = 206074880.

The previous prime is 722554531. The next prime is 722554561. The reversal of 722554536 is 635455227.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 722554494 and 722554503.

It is not an unprimeable number, because it can be changed into a prime (722554531) 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 15 ways as a sum of consecutive naturals, for example, 76011 + ... + 84986.

It is an arithmetic number, because the mean of its divisors is an integer number (32602095).

Almost surely, 2^722554536 is an apocalyptic number.

It is an amenable number.

722554536 is an abundant number, since it is smaller than the sum of its proper divisors (1363979544).

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

722554536 is a wasteful number, since it uses less digits than its factorization.

722554536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161034 (or 161030 counting only the distinct ones).

The product of its digits is 252000, while the sum is 39.

The square root of 722554536 is about 26880.3745509619. The cubic root of 722554536 is about 897.3396898156.

The spelling of 722554536 in words is "seven hundred twenty-two million, five hundred fifty-four thousand, five hundred thirty-six".