22445456 has 40 divisors (see below), whose sum is σ = 48118944. Its totient is φ = 10056960.

The previous prime is 22445431. The next prime is 22445459. The reversal of 22445456 is 65454422.

It is not an unprimeable number, because it can be changed into a prime (22445459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11975 + ... + 13721.

Almost surely, 2^22445456 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 22445456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24059472).

22445456 is an abundant number, since it is smaller than the sum of its proper divisors (25673488).

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

22445456 is a wasteful number, since it uses less digits than its factorization.

22445456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839 (or 1833 counting only the distinct ones).

The product of its digits is 38400, while the sum is 32.

The square root of 22445456 is about 4737.6635591819. The cubic root of 22445456 is about 282.0825002151.

Adding to 22445456 its reverse (65454422), we get a palindrome (87899878).

The spelling of 22445456 in words is "twenty-two million, four hundred forty-five thousand, four hundred fifty-six".