22813836 has 24 divisors (see below), whose sum is σ = 55068720. Its totient is φ = 7342272.

The previous prime is 22813829. The next prime is 22813841. The reversal of 22813836 is 63831822.

It is a super-2 number, since 2×22813836² = 1040942226069792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22813797 and 22813806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32431 + ... + 33126.

It is an arithmetic number, because the mean of its divisors is an integer number (2294530).

Almost surely, 2^22813836 is an apocalyptic number.

It is an amenable number.

22813836 is an abundant number, since it is smaller than the sum of its proper divisors (32254884).

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

22813836 is a wasteful number, since it uses less digits than its factorization.

22813836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65593 (or 65591 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 22813836 is about 4776.3831504602. The cubic root of 22813836 is about 283.6173349182.

The spelling of 22813836 in words is "twenty-two million, eight hundred thirteen thousand, eight hundred thirty-six".