22864845 has 16 divisors (see below), whose sum is σ = 36735552. Its totient is φ = 12144000.

The previous prime is 22864843. The next prime is 22864861. The reversal of 22864845 is 54846822.

It is not a de Polignac number, because 22864845 - 2¹ = 22864843 is a prime.

It is a super-2 number, since 2×22864845² = 1045602273748050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22864843) 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, 729 + ... + 6801.

It is an arithmetic number, because the mean of its divisors is an integer number (2295972).

Almost surely, 2^22864845 is an apocalyptic number.

It is an amenable number.

22864845 is a deficient number, since it is larger than the sum of its proper divisors (13870707).

22864845 is a wasteful number, since it uses less digits than its factorization.

22864845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6332.

The product of its digits is 122880, while the sum is 39.

The square root of 22864845 is about 4781.7198788720. The cubic root of 22864845 is about 283.8285556854.

The spelling of 22864845 in words is "twenty-two million, eight hundred sixty-four thousand, eight hundred forty-five".