22641492 has 24 divisors (see below), whose sum is σ = 53697952. Its totient is φ = 7423200.

The previous prime is 22641491. The next prime is 22641497. The reversal of 22641492 is 29414622.

22641492 = T₃₀₃ + T₃₀₄ + ... + T₅₄₆.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22641491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14734 + ... + 16197.

Almost surely, 2^22641492 is an apocalyptic number.

It is an amenable number.

22641492 is an abundant number, since it is smaller than the sum of its proper divisors (31056460).

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

22641492 is a wasteful number, since it uses less digits than its factorization.

22641492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30999 (or 30997 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 22641492 is about 4758.3076823593. The cubic root of 22641492 is about 282.9013461607.

The spelling of 22641492 in words is "twenty-two million, six hundred forty-one thousand, four hundred ninety-two".