22428272 has 10 divisors (see below), whose sum is σ = 43454808. Its totient is φ = 11214128.

The previous prime is 22428269. The next prime is 22428277. The reversal of 22428272 is 27282422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22428277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700868 + ... + 700899.

Almost surely, 2^22428272 is an apocalyptic number.

It is an amenable number.

22428272 is a deficient number, since it is larger than the sum of its proper divisors (21026536).

22428272 is a wasteful number, since it uses less digits than its factorization.

22428272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401775 (or 1401769 counting only the distinct ones).

The product of its digits is 7168, while the sum is 29.

The square root of 22428272 is about 4735.8496597760. The cubic root of 22428272 is about 282.0104953926.

The spelling of 22428272 in words is "twenty-two million, four hundred twenty-eight thousand, two hundred seventy-two".