22276636 has 12 divisors (see below), whose sum is σ = 39017160. Its totient is φ = 11128880.

The previous prime is 22276633. The next prime is 22276643. The reversal of 22276636 is 63667222.

It is a super-2 number, since 2×22276636² = 992497022952992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22276633) 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 3 ways as a sum of consecutive naturals, for example, 8166 + ... + 10546.

It is an arithmetic number, because the mean of its divisors is an integer number (3251430).

Almost surely, 2^22276636 is an apocalyptic number.

It is an amenable number.

22276636 is a deficient number, since it is larger than the sum of its proper divisors (16740524).

22276636 is a wasteful number, since it uses less digits than its factorization.

22276636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4724 (or 4722 counting only the distinct ones).

The product of its digits is 36288, while the sum is 34.

The square root of 22276636 is about 4719.8131318941. The cubic root of 22276636 is about 281.3735065133.

The spelling of 22276636 in words is "twenty-two million, two hundred seventy-six thousand, six hundred thirty-six".