22044005 has 16 divisors (see below), whose sum is σ = 28024704. Its totient is φ = 16610880.

The previous prime is 22043999. The next prime is 22044013. The reversal of 22044005 is 50044022.

It is not a de Polignac number, because 22044005 - 2⁶ = 22043941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6275 + ... + 9135.

It is an arithmetic number, because the mean of its divisors is an integer number (1751544).

Almost surely, 2^22044005 is an apocalyptic number.

It is an amenable number.

22044005 is a deficient number, since it is larger than the sum of its proper divisors (5980699).

22044005 is a wasteful number, since it uses less digits than its factorization.

22044005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 22044005 is about 4695.1043651872. The cubic root of 22044005 is about 280.3906324900.

Adding to 22044005 its sum of digits (17), we get a palindrome (22044022).

Adding to 22044005 its reverse (50044022), we get a palindrome (72088027).

The spelling of 22044005 in words is "twenty-two million, forty-four thousand, five".