22748292 has 36 divisors (see below), whose sum is σ = 65718016. Its totient is φ = 6499440.

The previous prime is 22748273. The next prime is 22748293. The reversal of 22748292 is 29284722.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22748293) 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 11 ways as a sum of consecutive naturals, for example, 44884 + ... + 45387.

Almost surely, 2^22748292 is an apocalyptic number.

It is an amenable number.

22748292 is an abundant number, since it is smaller than the sum of its proper divisors (42969724).

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

22748292 is a wasteful number, since it uses less digits than its factorization.

22748292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90288 (or 90283 counting only the distinct ones).

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

The square root of 22748292 is about 4769.5169566739. The cubic root of 22748292 is about 283.3454641481.

The spelling of 22748292 in words is "twenty-two million, seven hundred forty-eight thousand, two hundred ninety-two".