722878256 has 20 divisors (see below), whose sum is σ = 1474291800. Its totient is φ = 342415872.

The previous prime is 722878217. The next prime is 722878279. The reversal of 722878256 is 652878227.

722878256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 722878256.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1188641 + ... + 1189248.

It is an arithmetic number, because the mean of its divisors is an integer number (73714590).

Almost surely, 2^722878256 is an apocalyptic number.

722878256 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

722878256 is an abundant number, since it is smaller than the sum of its proper divisors (751413544).

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

722878256 is a wasteful number, since it uses less digits than its factorization.

722878256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377916 (or 2377910 counting only the distinct ones).

The product of its digits is 752640, while the sum is 47.

The square root of 722878256 is about 26886.3953701496. The cubic root of 722878256 is about 897.4736789792.

The spelling of 722878256 in words is "seven hundred twenty-two million, eight hundred seventy-eight thousand, two hundred fifty-six".