22990448 has 40 divisors (see below), whose sum is σ = 48465648. Its totient is φ = 10501632.

The previous prime is 22990441. The next prime is 22990453. The reversal of 22990448 is 84409922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22990441) 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, 21740 + ... + 22772.

Almost surely, 2^22990448 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 22990448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24232824).

22990448 is an abundant number, since it is smaller than the sum of its proper divisors (25475200).

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

22990448 is a wasteful number, since it uses less digits than its factorization.

22990448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161 (or 1155 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 22990448 is about 4794.8355550530. The cubic root of 22990448 is about 284.3473235231.

The spelling of 22990448 in words is "twenty-two million, nine hundred ninety thousand, four hundred forty-eight".