22126785 has 16 divisors (see below), whose sum is σ = 35640960. Its totient is φ = 11721600.

The previous prime is 22126751. The next prime is 22126787. The reversal of 22126785 is 58762122.

It is not a de Polignac number, because 22126785 - 2¹¹ = 22124737 is a prime.

It is a super-2 number, since 2×22126785² = 979189228872450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22126787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2620 + ... + 7149.

It is an arithmetic number, because the mean of its divisors is an integer number (2227560).

Almost surely, 2^22126785 is an apocalyptic number.

It is an amenable number.

22126785 is a deficient number, since it is larger than the sum of its proper divisors (13514175).

22126785 is a wasteful number, since it uses less digits than its factorization.

22126785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9928.

The product of its digits is 13440, while the sum is 33.

The square root of 22126785 is about 4703.9116700891. The cubic root of 22126785 is about 280.7411698696.

The spelling of 22126785 in words is "twenty-two million, one hundred twenty-six thousand, seven hundred eighty-five".