22745028 has 24 divisors (see below), whose sum is σ = 53233600. Its totient is φ = 7558560.

The previous prime is 22745027. The next prime is 22745053. The reversal of 22745028 is 82054722.

It is a junction number, because it is equal to n+sod(n) for n = 22744986 and 22745004.

It is not an unprimeable number, because it can be changed into a prime (22745027) 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 7 ways as a sum of consecutive naturals, for example, 1473 + ... + 6903.

Almost surely, 2^22745028 is an apocalyptic number.

It is an amenable number.

22745028 is an abundant number, since it is smaller than the sum of its proper divisors (30488572).

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

22745028 is a wasteful number, since it uses less digits than its factorization.

22745028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5787 (or 5785 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 22745028 is about 4769.1747713834. The cubic root of 22745028 is about 283.3319117191.

The spelling of 22745028 in words is "twenty-two million, seven hundred forty-five thousand, twenty-eight".