22631630 has 24 divisors (see below), whose sum is σ = 47388888. Its totient is φ = 7759248.

The previous prime is 22631617. The next prime is 22631639. The reversal of 22631630 is 3613622.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22631596 and 22631605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22631639) 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 11 ways as a sum of consecutive naturals, for example, 22604 + ... + 23583.

It is an arithmetic number, because the mean of its divisors is an integer number (1974537).

Almost surely, 2^22631630 is an apocalyptic number.

22631630 is an abundant number, since it is smaller than the sum of its proper divisors (24757258).

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

22631630 is a wasteful number, since it uses less digits than its factorization.

22631630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46208 (or 46201 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 22631630 is about 4757.2712766879. The cubic root of 22631630 is about 282.8602655604.

The spelling of 22631630 in words is "twenty-two million, six hundred thirty-one thousand, six hundred thirty".