722955216 has 80 divisors (see below), whose sum is σ = 1972889600. Its totient is φ = 227767680.

The previous prime is 722955197. The next prime is 722955223. The reversal of 722955216 is 612559227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58335 + ... + 69633.

It is an arithmetic number, because the mean of its divisors is an integer number (24661120).

Almost surely, 2^722955216 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 722955216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (986444800).

722955216 is an abundant number, since it is smaller than the sum of its proper divisors (1249934384).

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

722955216 is a wasteful number, since it uses less digits than its factorization.

722955216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11384 (or 11378 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 722955216 is about 26887.8265391608. The cubic root of 722955216 is about 897.5055271836.

The spelling of 722955216 in words is "seven hundred twenty-two million, nine hundred fifty-five thousand, two hundred sixteen".