22686630 has 32 divisors (see below), whose sum is σ = 55219968. Its totient is φ = 5964000.

The previous prime is 22686617. The next prime is 22686647. The reversal of 22686630 is 3668622.

It is a junction number, because it is equal to n+sod(n) for n = 22686591 and 22686600.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3196 + ... + 7455.

It is an arithmetic number, because the mean of its divisors is an integer number (1725624).

Almost surely, 2^22686630 is an apocalyptic number.

22686630 is an abundant number, since it is smaller than the sum of its proper divisors (32533338).

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

22686630 is a wasteful number, since it uses less digits than its factorization.

22686630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10732.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 22686630 is about 4763.0483936236. The cubic root of 22686630 is about 283.0892184166.

The spelling of 22686630 in words is "twenty-two million, six hundred eighty-six thousand, six hundred thirty".