22100838 has 32 divisors (see below), whose sum is σ = 48556800. Its totient is φ = 6674976.

The previous prime is 22100807. The next prime is 22100851. The reversal of 22100838 is 83800122.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1593 + ... + 6836.

It is an arithmetic number, because the mean of its divisors is an integer number (1517400).

Almost surely, 2^22100838 is an apocalyptic number.

22100838 is an abundant number, since it is smaller than the sum of its proper divisors (26455962).

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

22100838 is a wasteful number, since it uses less digits than its factorization.

22100838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8476.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 22100838 is about 4701.1528373368. The cubic root of 22100838 is about 280.6313897947.

The spelling of 22100838 in words is "twenty-two million, one hundred thousand, eight hundred thirty-eight".