22292144 has 20 divisors (see below), whose sum is σ = 49361424. Its totient is φ = 9553728.

The previous prime is 22292119. The next prime is 22292159. The reversal of 22292144 is 44129222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99407 + ... + 99630.

Almost surely, 2^22292144 is an apocalyptic number.

It is an amenable number.

22292144 is an abundant number, since it is smaller than the sum of its proper divisors (27069280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22292144 is a wasteful number, since it uses less digits than its factorization.

22292144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199052 (or 199046 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 22292144 is about 4721.4557077240. The cubic root of 22292144 is about 281.4387845946.

The spelling of 22292144 in words is "twenty-two million, two hundred ninety-two thousand, one hundred forty-four".