22042250 has 16 divisors (see below), whose sum is σ = 41263560. Its totient is φ = 8816800.

The previous prime is 22042249. The next prime is 22042301. The reversal of 22042250 is 5224022.

It can be written as a sum of positive squares in 4 ways, for example, as 6589489 + 15452761 = 2567^2 + 3931^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43835 + ... + 44334.

Almost surely, 2^22042250 is an apocalyptic number.

22042250 is a deficient number, since it is larger than the sum of its proper divisors (19221310).

22042250 is an equidigital number, since it uses as much as digits as its factorization.

22042250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88186 (or 88176 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 22042250 is about 4694.9174646633. The cubic root of 22042250 is about 280.3831913343.

Adding to 22042250 its reverse (5224022), we get a palindrome (27266272).

The spelling of 22042250 in words is "twenty-two million, forty-two thousand, two hundred fifty".