22645248 has 80 divisors (see below), whose sum is σ = 63049536. Its totient is φ = 7208960.

The previous prime is 22645247. The next prime is 22645267. The reversal of 22645248 is 84254622.

It is not an unprimeable number, because it can be changed into a prime (22645247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35008 + ... + 35648.

Almost surely, 2^22645248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22645248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31524768).

22645248 is an abundant number, since it is smaller than the sum of its proper divisors (40404288).

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

22645248 is an equidigital number, since it uses as much as digits as its factorization.

22645248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 669 counting only the distinct ones).

The product of its digits is 30720, while the sum is 33.

The square root of 22645248 is about 4758.7023441270. The cubic root of 22645248 is about 282.9169888093.

The spelling of 22645248 in words is "twenty-two million, six hundred forty-five thousand, two hundred forty-eight".