22730250 has 32 divisors (see below), whose sum is σ = 56736576. Its totient is φ = 6061200.

The previous prime is 22730249. The next prime is 22730261. The reversal of 22730250 is 5203722.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14404 + ... + 15903.

It is an arithmetic number, because the mean of its divisors is an integer number (1773018).

Almost surely, 2^22730250 is an apocalyptic number.

22730250 is an abundant number, since it is smaller than the sum of its proper divisors (34006326).

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

22730250 is a wasteful number, since it uses less digits than its factorization.

22730250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30327 (or 30317 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 22730250 is about 4767.6251950001. The cubic root of 22730250 is about 283.2705358713.

Adding to 22730250 its reverse (5203722), we get a palindrome (27933972).

The spelling of 22730250 in words is "twenty-two million, seven hundred thirty thousand, two hundred fifty".