222423445 has 8 divisors (see below), whose sum is σ = 267013080. Its totient is φ = 177868800.

The previous prime is 222423433. The next prime is 222423449. The reversal of 222423445 is 544324222.

222423445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 148084561 + 74338884 = 12169^2 + 8622^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222423445 - 2²⁷ = 88205717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222423449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8245 + ... + 22645.

It is an arithmetic number, because the mean of its divisors is an integer number (33376635).

Almost surely, 2^222423445 is an apocalyptic number.

It is an amenable number.

222423445 is a deficient number, since it is larger than the sum of its proper divisors (44589635).

222423445 is a wasteful number, since it uses less digits than its factorization.

222423445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17495.

The product of its digits is 15360, while the sum is 28.

The square root of 222423445 is about 14913.8675399777. The cubic root of 222423445 is about 605.8896321495.

Adding to 222423445 its reverse (544324222), we get a palindrome (766747667).

The spelling of 222423445 in words is "two hundred twenty-two million, four hundred twenty-three thousand, four hundred forty-five".