222958645 has 16 divisors (see below), whose sum is σ = 329293440. Its totient is φ = 141125184.

The previous prime is 222958613. The next prime is 222958663. The reversal of 222958645 is 546859222.

It is a cyclic number.

It is not a de Polignac number, because 222958645 - 2⁵ = 222958613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244555 + ... + 245464.

It is an arithmetic number, because the mean of its divisors is an integer number (20580840).

Almost surely, 2^222958645 is an apocalyptic number.

It is an amenable number.

222958645 is a deficient number, since it is larger than the sum of its proper divisors (106334795).

222958645 is a wasteful number, since it uses less digits than its factorization.

222958645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490044.

The product of its digits is 345600, while the sum is 43.

The square root of 222958645 is about 14931.7997910500. The cubic root of 222958645 is about 606.3752110388.

The spelling of 222958645 in words is "two hundred twenty-two million, nine hundred fifty-eight thousand, six hundred forty-five".