22146636 has 24 divisors (see below), whose sum is σ = 51755760. Its totient is φ = 7370752.

The previous prime is 22146611. The next prime is 22146637. The reversal of 22146636 is 63664122.

It is a super-2 number, since 2×22146636² = 980946972232992, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (22146637) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10780 + ... + 12668.

It is an arithmetic number, because the mean of its divisors is an integer number (2156490).

Almost surely, 2^22146636 is an apocalyptic number.

It is an amenable number.

22146636 is an abundant number, since it is smaller than the sum of its proper divisors (29609124).

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

22146636 is a wasteful number, since it uses less digits than its factorization.

22146636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873 (or 2871 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 22146636 is about 4706.0212494208. The cubic root of 22146636 is about 280.8251002311.

The spelling of 22146636 in words is "twenty-two million, one hundred forty-six thousand, six hundred thirty-six".