22104645 has 16 divisors (see below), whose sum is σ = 35968320. Its totient is φ = 11588864.

The previous prime is 22104637. The next prime is 22104671. The reversal of 22104645 is 54640122.

It is a cyclic number.

It is not a de Polignac number, because 22104645 - 2³ = 22104637 is a prime.

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, 11604 + ... + 13373.

It is an arithmetic number, because the mean of its divisors is an integer number (2248020).

Almost surely, 2^22104645 is an apocalyptic number.

It is an amenable number.

22104645 is a deficient number, since it is larger than the sum of its proper divisors (13863675).

22104645 is a wasteful number, since it uses less digits than its factorization.

22104645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25044.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 22104645 is about 4701.5577205858. The cubic root of 22104645 is about 280.6475023415.

Adding to 22104645 its reverse (54640122), we get a palindrome (76744767).

The spelling of 22104645 in words is "twenty-two million, one hundred four thousand, six hundred forty-five".