22236836 has 6 divisors (see below), whose sum is σ = 38914470. Its totient is φ = 11118416.

The previous prime is 22236817. The next prime is 22236853. The reversal of 22236836 is 63863222.

It can be written as a sum of positive squares in only one way, i.e., 16974400 + 5262436 = 4120^2 + 2294^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2779601 + ... + 2779608.

It is an arithmetic number, because the mean of its divisors is an integer number (6485745).

Almost surely, 2^22236836 is an apocalyptic number.

It is an amenable number.

22236836 is a deficient number, since it is larger than the sum of its proper divisors (16677634).

22236836 is a wasteful number, since it uses less digits than its factorization.

22236836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5559213 (or 5559211 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 22236836 is about 4715.5949783670. The cubic root of 22236836 is about 281.2058369505.

The spelling of 22236836 in words is "twenty-two million, two hundred thirty-six thousand, eight hundred thirty-six".