22742982 has 12 divisors (see below), whose sum is σ = 49276500. Its totient is φ = 7580988.

The previous prime is 22742977. The next prime is 22742983. The reversal of 22742982 is 28924722.

It is a happy number.

22742982 is a `hidden beast` number, since 227 + 429 + 8 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22742983) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 631732 + ... + 631767.

It is an arithmetic number, because the mean of its divisors is an integer number (4106375).

Almost surely, 2^22742982 is an apocalyptic number.

22742982 is an abundant number, since it is smaller than the sum of its proper divisors (26533518).

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

22742982 is a wasteful number, since it uses less digits than its factorization.

22742982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263507 (or 1263504 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 22742982 is about 4768.9602640408. The cubic root of 22742982 is about 283.3234158774.

The spelling of 22742982 in words is "twenty-two million, seven hundred forty-two thousand, nine hundred eighty-two".