22086404 has 12 divisors (see below), whose sum is σ = 38686284. Its totient is φ = 11033184.

The previous prime is 22086403. The next prime is 22086431. The reversal of 22086404 is 40468022.

It can be written as a sum of positive squares in 2 ways, for example, as 11833600 + 10252804 = 3440^2 + 3202^2 .

It is not an unprimeable number, because it can be changed into a prime (22086401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4862 + ... + 8234.

It is an arithmetic number, because the mean of its divisors is an integer number (3223857).

Almost surely, 2^22086404 is an apocalyptic number.

It is an amenable number.

22086404 is a deficient number, since it is larger than the sum of its proper divisors (16599880).

22086404 is a wasteful number, since it uses less digits than its factorization.

22086404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5014 (or 5012 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 22086404 is about 4699.6174312384. The cubic root of 22086404 is about 280.5702832789.

The spelling of 22086404 in words is "twenty-two million, eighty-six thousand, four hundred four".