22224939 has 16 divisors (see below), whose sum is σ = 32430720. Its totient is φ = 13426560.

The previous prime is 22224893. The next prime is 22224941. The reversal of 22224939 is 93942222.

It is a happy number.

It is not a de Polignac number, because 22224939 - 2¹¹ = 22222891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (22224959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11619 + ... + 13395.

It is an arithmetic number, because the mean of its divisors is an integer number (2026920).

Almost surely, 2^22224939 is an apocalyptic number.

22224939 is a deficient number, since it is larger than the sum of its proper divisors (10205781).

22224939 is a wasteful number, since it uses less digits than its factorization.

22224939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170.

The product of its digits is 15552, while the sum is 33.

The square root of 22224939 is about 4714.3333569021. Note that the first 4 decimals coincide. The cubic root of 22224939 is about 281.1556783960.

The spelling of 22224939 in words is "twenty-two million, two hundred twenty-four thousand, nine hundred thirty-nine".