22786404 has 12 divisors (see below), whose sum is σ = 53168304. Its totient is φ = 7595464.

The previous prime is 22786327. The next prime is 22786417. The reversal of 22786404 is 40468722.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 949422 + ... + 949445.

It is an arithmetic number, because the mean of its divisors is an integer number (4430692).

Almost surely, 2^22786404 is an apocalyptic number.

It is an amenable number.

22786404 is an abundant number, since it is smaller than the sum of its proper divisors (30381900).

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

22786404 is a wasteful number, since it uses less digits than its factorization.

22786404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898874 (or 1898872 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 22786404 is about 4773.5106577864. The cubic root of 22786404 is about 283.5036128303.

The spelling of 22786404 in words is "twenty-two million, seven hundred eighty-six thousand, four hundred four".