722971392 has 288 divisors, whose sum is σ = 2348801280. Its totient is φ = 194396160.

The previous prime is 722971391. The next prime is 722971399. The reversal of 722971392 is 293179227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722971391) 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 31 ways as a sum of consecutive naturals, for example, 3184783 + ... + 3185009.

It is an arithmetic number, because the mean of its divisors is an integer number (8155560).

Almost surely, 2^722971392 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 722971392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1174400640).

722971392 is an abundant number, since it is smaller than the sum of its proper divisors (1625829888).

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

722971392 is a wasteful number, since it uses less digits than its factorization.

722971392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 285 counting only the distinct ones).

The product of its digits is 95256, while the sum is 42.

The square root of 722971392 is about 26888.1273427511. The cubic root of 722971392 is about 897.5122209782.

The spelling of 722971392 in words is "seven hundred twenty-two million, nine hundred seventy-one thousand, three hundred ninety-two".