22448772 has 48 divisors (see below), whose sum is σ = 61629120. Its totient is φ = 7042176.

The previous prime is 22448749. The next prime is 22448773. The reversal of 22448772 is 27784422.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22448773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4278 + ... + 7949.

It is an arithmetic number, because the mean of its divisors is an integer number (1283940).

Almost surely, 2^22448772 is an apocalyptic number.

It is an amenable number.

22448772 is an abundant number, since it is smaller than the sum of its proper divisors (39180348).

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

22448772 is a wasteful number, since it uses less digits than its factorization.

22448772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12257 (or 12249 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 22448772 is about 4738.0135077899. The cubic root of 22448772 is about 282.0963907699.

It can be divided in two parts, 22448 and 772, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 22448772 in words is "twenty-two million, four hundred forty-eight thousand, seven hundred seventy-two".