22722450 has 24 divisors (see below), whose sum is σ = 56352048. Its totient is φ = 6059280.

The previous prime is 22722449. The next prime is 22722451. The reversal of 22722450 is 5422722.

It is an interprime number because it is at equal distance from previous prime (22722449) and next prime (22722451).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22722450.

It is not an unprimeable number, because it can be changed into a prime (22722451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75592 + ... + 75891.

It is an arithmetic number, because the mean of its divisors is an integer number (2348002).

Almost surely, 2^22722450 is an apocalyptic number.

22722450 is an abundant number, since it is smaller than the sum of its proper divisors (33629598).

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

22722450 is a wasteful number, since it uses less digits than its factorization.

22722450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151498 (or 151493 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 22722450 is about 4766.8071074882. The cubic root of 22722450 is about 283.2381302596.

The spelling of 22722450 in words is "twenty-two million, seven hundred twenty-two thousand, four hundred fifty".