22129886 has 12 divisors (see below), whose sum is σ = 35263248. Its totient is φ = 10413792.

The previous prime is 22129853. The next prime is 22129901. The reversal of 22129886 is 68892122.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18566 + ... + 19721.

It is an arithmetic number, because the mean of its divisors is an integer number (2938604).

Almost surely, 2^22129886 is an apocalyptic number.

22129886 is a deficient number, since it is larger than the sum of its proper divisors (13133362).

22129886 is a wasteful number, since it uses less digits than its factorization.

22129886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38323 (or 38306 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 22129886 is about 4704.2412778258. The cubic root of 22129886 is about 280.7542842571.

The spelling of 22129886 in words is "twenty-two million, one hundred twenty-nine thousand, eight hundred eighty-six".