722249 has 12 divisors (see below), whose sum is σ = 817152. Its totient is φ = 637560.

The previous prime is 722243. The next prime is 722257. The reversal of 722249 is 942227.

It is a de Polignac number, because none of the positive numbers 2^k-722249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5624 + ... + 5750.

It is an arithmetic number, because the mean of its divisors is an integer number (68096).

2⁷²²²⁴⁹ is an apocalyptic number.

It is an amenable number.

722249 is a deficient number, since it is larger than the sum of its proper divisors (94903).

722249 is a wasteful number, since it uses less digits than its factorization.

722249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 185 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 722249 is about 849.8523401156. The cubic root of 722249 is about 89.7213190375.

The spelling of 722249 in words is "seven hundred twenty-two thousand, two hundred forty-nine".