22445248 has 28 divisors (see below), whose sum is σ = 50903632. Its totient is φ = 9619200.

The previous prime is 22445239. The next prime is 22445249. The reversal of 22445248 is 84254422.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (22445249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24603 + ... + 25498.

Almost surely, 2^22445248 is an apocalyptic number.

22445248 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22445248 is an abundant number, since it is smaller than the sum of its proper divisors (28458384).

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

22445248 is an equidigital number, since it uses as much as digits as its factorization.

22445248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50120 (or 50110 counting only the distinct ones).

The product of its digits is 20480, while the sum is 31.

The square root of 22445248 is about 4737.6416073823. The cubic root of 22445248 is about 282.0816288681.

The spelling of 22445248 in words is "twenty-two million, four hundred forty-five thousand, two hundred forty-eight".