22427986 has 24 divisors (see below), whose sum is σ = 39455856. Its totient is φ = 9533160.

The previous prime is 22427969. The next prime is 22427987. The reversal of 22427986 is 68972422.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (22427987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11965 + ... + 13711.

It is an arithmetic number, because the mean of its divisors is an integer number (1643994).

Almost surely, 2^22427986 is an apocalyptic number.

22427986 is a deficient number, since it is larger than the sum of its proper divisors (17027870).

22427986 is a wasteful number, since it uses less digits than its factorization.

22427986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894 (or 1887 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 22427986 is about 4735.8194644644. The cubic root of 22427986 is about 282.0092966772.

The spelling of 22427986 in words is "twenty-two million, four hundred twenty-seven thousand, nine hundred eighty-six".