22490974 has 16 divisors (see below), whose sum is σ = 37499760. Its totient is φ = 10029760.

The previous prime is 22490969. The next prime is 22490981. The reversal of 22490974 is 47909422.

It is a super-2 number, since 2×22490974² = 1011687822937352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8479 + ... + 10810.

It is an arithmetic number, because the mean of its divisors is an integer number (2343735).

Almost surely, 2^22490974 is an apocalyptic number.

22490974 is a deficient number, since it is larger than the sum of its proper divisors (15008786).

22490974 is a wasteful number, since it uses less digits than its factorization.

22490974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19355.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 22490974 is about 4742.4649708775. The cubic root of 22490974 is about 282.2730534322.

The spelling of 22490974 in words is "twenty-two million, four hundred ninety thousand, nine hundred seventy-four".