22044245 has 4 divisors (see below), whose sum is σ = 26453100. Its totient is φ = 17635392.

The previous prime is 22044233. The next prime is 22044271. The reversal of 22044245 is 54244022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7474756 + 14569489 = 2734^2 + 3817^2 .

It is a cyclic number.

It is not a de Polignac number, because 22044245 - 2¹⁴ = 22027861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22044245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2204420 + ... + 2204429.

It is an arithmetic number, because the mean of its divisors is an integer number (6613275).

Almost surely, 2^22044245 is an apocalyptic number.

It is an amenable number.

22044245 is a deficient number, since it is larger than the sum of its proper divisors (4408855).

22044245 is an equidigital number, since it uses as much as digits as its factorization.

22044245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4408854.

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

The square root of 22044245 is about 4695.1299236549. The cubic root of 22044245 is about 280.3916500532.

Adding to 22044245 its reverse (54244022), we get a palindrome (76288267).

The spelling of 22044245 in words is "twenty-two million, forty-four thousand, two hundred forty-five".