22244450 has 54 divisors (see below), whose sum is σ = 44794659. Its totient is φ = 8217440.

The previous prime is 22244441. The next prime is 22244477. The reversal of 22244450 is 5444222.

It can be written as a sum of positive squares in 5 ways, for example, as 8532241 + 13712209 = 2921^2 + 3703^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3335.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 767036 + ... + 767064.

Almost surely, 2^22244450 is an apocalyptic number.

22244450 is an abundant number, since it is smaller than the sum of its proper divisors (22550209).

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

22244450 is a wasteful number, since it uses less digits than its factorization.

22244450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 22244450 is about 4716.4022305143. The cubic root of 22244450 is about 281.2379287000.

Adding to 22244450 its reverse (5444222), we get a palindrome (27688672).

The spelling of 22244450 in words is "twenty-two million, two hundred forty-four thousand, four hundred fifty".