22572450 has 72 divisors (see below), whose sum is σ = 61359168. Its totient is φ = 5948640.

The previous prime is 22572443. The next prime is 22572461. The reversal of 22572450 is 5427522.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 46107 + ... + 46593.

Almost surely, 2^22572450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22572450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30679584).

22572450 is an abundant number, since it is smaller than the sum of its proper divisors (38786718).

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

22572450 is a wasteful number, since it uses less digits than its factorization.

22572450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 22572450 is about 4751.0472529749. The cubic root of 22572450 is about 282.6134976116.

Adding to 22572450 its reverse (5427522), we get a palindrome (27999972).

The spelling of 22572450 in words is "twenty-two million, five hundred seventy-two thousand, four hundred fifty".