22228250 has 64 divisors (see below), whose sum is σ = 46500480. Its totient is φ = 7888000.

The previous prime is 22228249. The next prime is 22228279. The reversal of 22228250 is 5282222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162182 + ... + 162318.

It is an arithmetic number, because the mean of its divisors is an integer number (726570).

Almost surely, 2^22228250 is an apocalyptic number.

22228250 is an abundant number, since it is smaller than the sum of its proper divisors (24272230).

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

22228250 is a wasteful number, since it uses less digits than its factorization.

22228250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 22228250 is about 4714.6845069421. The cubic root of 22228250 is about 281.1696395926.

The spelling of 22228250 in words is "twenty-two million, two hundred twenty-eight thousand, two hundred fifty".