22124445 has 16 divisors (see below), whose sum is σ = 40456320. Its totient is φ = 10113984.

The previous prime is 22124437. The next prime is 22124447. The reversal of 22124445 is 54442122.

22124445 = 778² + 779² + ... + 812².

It is a happy number.

It is not a de Polignac number, because 22124445 - 2³ = 22124437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22124447) 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, 105250 + ... + 105459.

It is an arithmetic number, because the mean of its divisors is an integer number (2528520).

Almost surely, 2^22124445 is an apocalyptic number.

It is an amenable number.

22124445 is a deficient number, since it is larger than the sum of its proper divisors (18331875).

22124445 is a wasteful number, since it uses less digits than its factorization.

22124445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210724.

The product of its digits is 2560, while the sum is 24.

The square root of 22124445 is about 4703.6629343523. The cubic root of 22124445 is about 280.7312730033.

Adding to 22124445 its reverse (54442122), we get a palindrome (76566567).

The spelling of 22124445 in words is "twenty-two million, one hundred twenty-four thousand, four hundred forty-five".