722939630 has 24 divisors (see below), whose sum is σ = 1513748088. Its totient is φ = 247864848.

The previous prime is 722939629. The next prime is 722939653. The reversal of 722939630 is 36939227.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 737204 + ... + 738183.

It is an arithmetic number, because the mean of its divisors is an integer number (63072837).

Almost surely, 2^722939630 is an apocalyptic number.

722939630 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

722939630 is an abundant number, since it is smaller than the sum of its proper divisors (790808458).

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

722939630 is a wasteful number, since it uses less digits than its factorization.

722939630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475408 (or 1475401 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 722939630 is about 26887.5367038336. The cubic root of 722939630 is about 897.4990774426.

The spelling of 722939630 in words is "seven hundred twenty-two million, nine hundred thirty-nine thousand, six hundred thirty".