226722 has 16 divisors (see below), whose sum is σ = 469440. Its totient is φ = 72912.

The previous prime is 226697. The next prime is 226741. The reversal of 226722 is 227622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478 + ... + 825.

It is an arithmetic number, because the mean of its divisors is an integer number (29340).

2²²⁶⁷²² is an apocalyptic number.

226722 is an abundant number, since it is smaller than the sum of its proper divisors (242718).

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

226722 is a wasteful number, since it uses less digits than its factorization.

226722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337.

The product of its digits is 672, while the sum is 21.

The square root of 226722 is about 476.1533366469. The cubic root of 226722 is about 60.9767895212.

Subtracting 226722 from its reverse (227622), we obtain a square (900 = 30²).

The spelling of 226722 in words is "two hundred twenty-six thousand, seven hundred twenty-two".