722564608 has 40 divisors (see below), whose sum is σ = 1450311192. Its totient is φ = 359632896.

The previous prime is 722564603. The next prime is 722564629. The reversal of 722564608 is 806465227.

It is a super-2 number, since 2×722564608² = 1044199225468387328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722564603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113116 + ... + 119332.

Almost surely, 2^722564608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722564608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (725155596).

722564608 is an abundant number, since it is smaller than the sum of its proper divisors (727746584).

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

722564608 is an equidigital number, since it uses as much as digits as its factorization.

722564608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6462 (or 6446 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 722564608 is about 26880.5618988889. The cubic root of 722564608 is about 897.3438592648.

The spelling of 722564608 in words is "seven hundred twenty-two million, five hundred sixty-four thousand, six hundred eight".