22398250 has 32 divisors (see below), whose sum is σ = 47923200. Its totient is φ = 7678800.

The previous prime is 22398247. The next prime is 22398253. The reversal of 22398250 is 5289322.

It is an interprime number because it is at equal distance from previous prime (22398247) and next prime (22398253).

It is not an unprimeable number, because it can be changed into a prime (22398253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4650 + ... + 8149.

It is an arithmetic number, because the mean of its divisors is an integer number (1497600).

Almost surely, 2^22398250 is an apocalyptic number.

22398250 is an abundant number, since it is smaller than the sum of its proper divisors (25524950).

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

22398250 is a wasteful number, since it uses less digits than its factorization.

22398250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12823 (or 12813 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 22398250 is about 4732.6789453754. The cubic root of 22398250 is about 281.8846081552.

The spelling of 22398250 in words is "twenty-two million, three hundred ninety-eight thousand, two hundred fifty".