22445445 has 16 divisors (see below), whose sum is σ = 39177792. Its totient is φ = 10882560.

The previous prime is 22445431. The next prime is 22445459. The reversal of 22445445 is 54454422.

It is an interprime number because it is at equal distance from previous prime (22445431) and next prime (22445459).

It is not a de Polignac number, because 22445445 - 2⁵ = 22445413 is a prime.

It is a Curzon 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, 67852 + ... + 68181.

It is an arithmetic number, because the mean of its divisors is an integer number (2448612).

Almost surely, 2^22445445 is an apocalyptic number.

It is an amenable number.

22445445 is a deficient number, since it is larger than the sum of its proper divisors (16732347).

22445445 is a wasteful number, since it uses less digits than its factorization.

22445445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136052.

The product of its digits is 25600, while the sum is 30.

The square root of 22445445 is about 4737.6623982720. The cubic root of 22445445 is about 282.0824541344.

Adding to 22445445 its reverse (54454422), we get a palindrome (76899867).

The spelling of 22445445 in words is "twenty-two million, four hundred forty-five thousand, four hundred forty-five".