722622216 has 16 divisors (see below), whose sum is σ = 1806555600. Its totient is φ = 240874064.

The previous prime is 722622209. The next prime is 722622283. The reversal of 722622216 is 612226227.

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, 15054606 + ... + 15054653.

It is an arithmetic number, because the mean of its divisors is an integer number (112909725).

Almost surely, 2^722622216 is an apocalyptic number.

It is an amenable number.

722622216 is an abundant number, since it is smaller than the sum of its proper divisors (1083933384).

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

722622216 is a wasteful number, since it uses less digits than its factorization.

722622216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30109268 (or 30109264 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 722622216 is about 26881.6334325130. The cubic root of 722622216 is about 897.3677061803.

The spelling of 722622216 in words is "seven hundred twenty-two million, six hundred twenty-two thousand, two hundred sixteen".