722214328 has 16 divisors (see below), whose sum is σ = 1477256760. Its totient is φ = 328279200.

The previous prime is 722214307. The next prime is 722214391. The reversal of 722214328 is 823412227.

It is a self number, because there is not a number n which added to its sum of digits gives 722214328.

It is a congruent number.

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, 4103403 + ... + 4103578.

Almost surely, 2^722214328 is an apocalyptic number.

It is an amenable number.

722214328 is an abundant number, since it is smaller than the sum of its proper divisors (755042432).

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

722214328 is a wasteful number, since it uses less digits than its factorization.

722214328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8206998 (or 8206994 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 722214328 is about 26874.0456202634. The cubic root of 722214328 is about 897.1988330583.

The spelling of 722214328 in words is "seven hundred twenty-two million, two hundred fourteen thousand, three hundred twenty-eight".