22245238 has 16 divisors (see below), whose sum is σ = 35388720. Its totient is φ = 10457856.

The previous prime is 22245227. The next prime is 22245263. The reversal of 22245238 is 83254222.

It is a happy number.

It is a super-2 number, since 2×22245238² = 989701227353288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3070 + ... + 7342.

It is an arithmetic number, because the mean of its divisors is an integer number (2211795).

Almost surely, 2^22245238 is an apocalyptic number.

22245238 is a deficient number, since it is larger than the sum of its proper divisors (13143482).

22245238 is a wasteful number, since it uses less digits than its factorization.

22245238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4431.

The product of its digits is 7680, while the sum is 28.

The square root of 22245238 is about 4716.4857680269. The cubic root of 22245238 is about 281.2412495714.

The spelling of 22245238 in words is "twenty-two million, two hundred forty-five thousand, two hundred thirty-eight".