222490169 has 16 divisors (see below), whose sum is σ = 258007680. Its totient is φ = 189615360.

The previous prime is 222490153. The next prime is 222490199. The reversal of 222490169 is 961094222.

It is not a de Polignac number, because 222490169 - 2⁴ = 222490153 is a prime.

It is a super-2 number, since 2×222490169² = 99003750603297122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222490199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48092 + ... + 52514.

It is an arithmetic number, because the mean of its divisors is an integer number (16125480).

Almost surely, 2^222490169 is an apocalyptic number.

It is an amenable number.

222490169 is a deficient number, since it is larger than the sum of its proper divisors (35517511).

222490169 is a wasteful number, since it uses less digits than its factorization.

222490169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4720.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 222490169 is about 14916.1043506674. The cubic root of 222490169 is about 605.9502123009.

The spelling of 222490169 in words is "two hundred twenty-two million, four hundred ninety thousand, one hundred sixty-nine".