22997250 has 64 divisors (see below), whose sum is σ = 63797760. Its totient is φ = 6130800.

The previous prime is 22997213. The next prime is 22997251. The reversal of 22997250 is 5279922.

It is not an unprimeable number, because it can be changed into a prime (22997251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5047 + ... + 8453.

It is an arithmetic number, because the mean of its divisors is an integer number (996840).

Almost surely, 2^22997250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22997250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31898880).

22997250 is an abundant number, since it is smaller than the sum of its proper divisors (40800510).

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

22997250 is a wasteful number, since it uses less digits than its factorization.

22997250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3433 (or 3417 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 22997250 is about 4795.5448074228. The cubic root of 22997250 is about 284.3753632809.

It can be divided in two parts, 229 and 97250, that added together give a palindrome (97479).

The spelling of 22997250 in words is "twenty-two million, nine hundred ninety-seven thousand, two hundred fifty".