222843645 has 12 divisors (see below), whose sum is σ = 386262396. Its totient is φ = 118849920.

The previous prime is 222843623. The next prime is 222843679. The reversal of 222843645 is 546348222.

222843645 is a `hidden beast` number, since 2 + 2 + 2 + 8 + 4 + 3 + 645 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 102151449 + 120692196 = 10107^2 + 10986^2 .

It is not a de Polignac number, because 222843645 - 2⁵ = 222843613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2475996 + ... + 2476085.

It is an arithmetic number, because the mean of its divisors is an integer number (32188533).

Almost surely, 2^222843645 is an apocalyptic number.

It is an amenable number.

222843645 is a deficient number, since it is larger than the sum of its proper divisors (163418751).

222843645 is a wasteful number, since it uses less digits than its factorization.

222843645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4952092 (or 4952089 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 222843645 is about 14927.9484524833. The cubic root of 222843645 is about 606.2709388736.

The spelling of 222843645 in words is "two hundred twenty-two million, eight hundred forty-three thousand, six hundred forty-five".