222657232 has 20 divisors (see below), whose sum is σ = 493026976. Its totient is φ = 95424480.

The previous prime is 222657229. The next prime is 222657233. The reversal of 222657232 is 232756222.

It is a happy number.

222657232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 222657194 and 222657203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222657233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 993894 + ... + 994117.

Almost surely, 2^222657232 is an apocalyptic number.

It is an amenable number.

222657232 is an abundant number, since it is smaller than the sum of its proper divisors (270369744).

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

222657232 is a wasteful number, since it uses less digits than its factorization.

222657232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988026 (or 1988020 counting only the distinct ones).

The product of its digits is 20160, while the sum is 31.

The square root of 222657232 is about 14921.7033880184. The cubic root of 222657232 is about 606.1018392750.

The spelling of 222657232 in words is "two hundred twenty-two million, six hundred fifty-seven thousand, two hundred thirty-two".