22840836 has 24 divisors (see below), whose sum is σ = 54092640. Its totient is φ = 7499712.

The previous prime is 22840819. The next prime is 22840859. The reversal of 22840836 is 63804822.

It is a junction number, because it is equal to n+sod(n) for n = 22840797 and 22840806.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13401 + ... + 15008.

It is an arithmetic number, because the mean of its divisors is an integer number (2253860).

Almost surely, 2^22840836 is an apocalyptic number.

It is an amenable number.

22840836 is an abundant number, since it is smaller than the sum of its proper divisors (31251804).

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

22840836 is a wasteful number, since it uses less digits than its factorization.

22840836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28483 (or 28481 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 22840836 is about 4779.2087211169. The cubic root of 22840836 is about 283.7291771222.

The spelling of 22840836 in words is "twenty-two million, eight hundred forty thousand, eight hundred thirty-six".