22726250 has 20 divisors (see below), whose sum is σ = 42600426. Its totient is φ = 9090000.

The previous prime is 22726247. The next prime is 22726267. The reversal of 22726250 is 5262722.

It can be written as a sum of positive squares in 5 ways, for example, as 3286969 + 19439281 = 1813^2 + 4409^2 .

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 7841 + ... + 10340.

Almost surely, 2^22726250 is an apocalyptic number.

22726250 is a deficient number, since it is larger than the sum of its proper divisors (19874176).

22726250 is an equidigital number, since it uses as much as digits as its factorization.

22726250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18203 (or 18188 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 22726250 is about 4767.2056804799. The cubic root of 22726250 is about 283.2539185351.

Adding to 22726250 its reverse (5262722), we get a palindrome (27988972).

The spelling of 22726250 in words is "twenty-two million, seven hundred twenty-six thousand, two hundred fifty".