222423045 has 32 divisors (see below), whose sum is σ = 384797952. Its totient is φ = 109059072.

The previous prime is 222423031. The next prime is 222423059. The reversal of 222423045 is 540324222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222423031) and next prime (222423059).

It is not a de Polignac number, because 222423045 - 2⁴ = 222423029 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49117 + ... + 53453.

It is an arithmetic number, because the mean of its divisors is an integer number (12024936).

Almost surely, 2^222423045 is an apocalyptic number.

It is an amenable number.

222423045 is a deficient number, since it is larger than the sum of its proper divisors (162374907).

222423045 is a wasteful number, since it uses less digits than its factorization.

222423045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4621.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 222423045 is about 14913.8541296340. The cubic root of 222423045 is about 605.8892689444.

Adding to 222423045 its reverse (540324222), we get a palindrome (762747267).

The spelling of 222423045 in words is "two hundred twenty-two million, four hundred twenty-three thousand, forty-five".