722208 has 24 divisors (see below), whose sum is σ = 1896048. Its totient is φ = 240704.

The previous prime is 722173. The next prime is 722213. The reversal of 722208 is 802227.

It is a tau number, because it is divible by the number of its divisors (24).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 722208.

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, 3666 + ... + 3857.

It is an arithmetic number, because the mean of its divisors is an integer number (79002).

2⁷²²²⁰⁸ is an apocalyptic number.

It is an amenable number.

722208 is an abundant number, since it is smaller than the sum of its proper divisors (1173840).

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

722208 is a wasteful number, since it uses less digits than its factorization.

722208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7536 (or 7528 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 722208 is about 849.8282179358. The cubic root of 722208 is about 89.7196212649.

The spelling of 722208 in words is "seven hundred twenty-two thousand, two hundred eight".