722573630 has 16 divisors (see below), whose sum is σ = 1300970160. Its totient is φ = 288954432.

The previous prime is 722573617. The next prime is 722573639. The reversal of 722573630 is 36375227.

722573630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×722573630² = 1044225301542753800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722573639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47501 + ... + 60839.

It is an arithmetic number, because the mean of its divisors is an integer number (81310635).

Almost surely, 2^722573630 is an apocalyptic number.

722573630 is a deficient number, since it is larger than the sum of its proper divisors (578396530).

722573630 is a wasteful number, since it uses less digits than its factorization.

722573630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18763.

The product of its (nonzero) digits is 52920, while the sum is 35.

The square root of 722573630 is about 26880.7297147976. The cubic root of 722573630 is about 897.3475940186.

The spelling of 722573630 in words is "seven hundred twenty-two million, five hundred seventy-three thousand, six hundred thirty".