222794645 has 4 divisors (see below), whose sum is σ = 267353580. Its totient is φ = 178235712.

The previous prime is 222794641. The next prime is 222794657. The reversal of 222794645 is 546497222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85951441 + 136843204 = 9271^2 + 11698^2 .

It is a cyclic number.

It is not a de Polignac number, because 222794645 - 2² = 222794641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222794641) 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, 22279460 + ... + 22279469.

It is an arithmetic number, because the mean of its divisors is an integer number (66838395).

Almost surely, 2^222794645 is an apocalyptic number.

It is an amenable number.

222794645 is a deficient number, since it is larger than the sum of its proper divisors (44558935).

222794645 is an equidigital number, since it uses as much as digits as its factorization.

222794645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44558934.

The product of its digits is 241920, while the sum is 41.

The square root of 222794645 is about 14926.3071454396. The cubic root of 222794645 is about 606.2264989650.

The spelling of 222794645 in words is "two hundred twenty-two million, seven hundred ninety-four thousand, six hundred forty-five".