22845228 has 24 divisors (see below), whose sum is σ = 60920832. Its totient is φ = 6527184.

The previous prime is 22845223. The next prime is 22845247. The reversal of 22845228 is 82254822.

It is not an unprimeable number, because it can be changed into a prime (22845223) 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, 135900 + ... + 136067.

It is an arithmetic number, because the mean of its divisors is an integer number (2538368).

Almost surely, 2^22845228 is an apocalyptic number.

22845228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22845228 is an abundant number, since it is smaller than the sum of its proper divisors (38075604).

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

22845228 is a wasteful number, since it uses less digits than its factorization.

22845228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271981 (or 271979 counting only the distinct ones).

The product of its digits is 20480, while the sum is 33.

The square root of 22845228 is about 4779.6681893203. The cubic root of 22845228 is about 283.7473617847.

The spelling of 22845228 in words is "twenty-two million, eight hundred forty-five thousand, two hundred twenty-eight".