22274418 has 24 divisors (see below), whose sum is σ = 45278352. Its totient is φ = 7305144.

The previous prime is 22274383. The next prime is 22274423. The reversal of 22274418 is 81447222.

It is a super-2 number, since 2×22274418² = 992299394477448, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26521 + ... + 27347.

It is an arithmetic number, because the mean of its divisors is an integer number (1886598).

Almost surely, 2^22274418 is an apocalyptic number.

22274418 is an abundant number, since it is smaller than the sum of its proper divisors (23003934).

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

22274418 is an equidigital number, since it uses as much as digits as its factorization.

22274418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966 (or 899 counting only the distinct ones).

The product of its digits is 7168, while the sum is 30.

The square root of 22274418 is about 4719.5781591155. The cubic root of 22274418 is about 281.3641677731.

The spelling of 22274418 in words is "twenty-two million, two hundred seventy-four thousand, four hundred eighteen".