22864236 has 24 divisors (see below), whose sum is σ = 55071744. Its totient is φ = 7375440.

The previous prime is 22864223. The next prime is 22864243. The reversal of 22864236 is 63246822.

It is a junction number, because it is equal to n+sod(n) for n = 22864197 and 22864206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30360 + ... + 31103.

It is an arithmetic number, because the mean of its divisors is an integer number (2294656).

Almost surely, 2^22864236 is an apocalyptic number.

It is an amenable number.

22864236 is an abundant number, since it is smaller than the sum of its proper divisors (32207508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22864236 is a wasteful number, since it uses less digits than its factorization.

22864236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61501 (or 61499 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 22864236 is about 4781.6561984317. The cubic root of 22864236 is about 283.8260357597.

The spelling of 22864236 in words is "twenty-two million, eight hundred sixty-four thousand, two hundred thirty-six".