22166242 has 16 divisors (see below), whose sum is σ = 38884032. Its totient is φ = 9278640.

The previous prime is 22166233. The next prime is 22166257. The reversal of 22166242 is 24266122.

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, 17809 + ... + 19012.

It is an arithmetic number, because the mean of its divisors is an integer number (2430252).

Almost surely, 2^22166242 is an apocalyptic number.

22166242 is a deficient number, since it is larger than the sum of its proper divisors (16717790).

22166242 is a wasteful number, since it uses less digits than its factorization.

22166242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36873.

The product of its digits is 2304, while the sum is 25.

The square root of 22166242 is about 4708.1038646147. The cubic root of 22166242 is about 280.9079455139.

The spelling of 22166242 in words is "twenty-two million, one hundred sixty-six thousand, two hundred forty-two".