22749992 has 32 divisors (see below), whose sum is σ = 45393600. Its totient is φ = 10658304.

The previous prime is 22749989. The next prime is 22749997. The reversal of 22749992 is 29994722.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22749997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13973 + ... + 15515.

It is an arithmetic number, because the mean of its divisors is an integer number (1418550).

Almost surely, 2^22749992 is an apocalyptic number.

It is an amenable number.

22749992 is a deficient number, since it is larger than the sum of its proper divisors (22643608).

22749992 is a wasteful number, since it uses less digits than its factorization.

22749992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665 (or 1661 counting only the distinct ones).

The product of its digits is 163296, while the sum is 44.

The square root of 22749992 is about 4769.6951684568. The cubic root of 22749992 is about 283.3525221914.

The spelling of 22749992 in words is "twenty-two million, seven hundred forty-nine thousand, nine hundred ninety-two".