22940631 has 16 divisors (see below), whose sum is σ = 38841600. Its totient is φ = 13108824.

The previous prime is 22940627. The next prime is 22940641. The reversal of 22940631 is 13604922.

22940631 is a `hidden beast` number, since 2 + 29 + 4 + 0 + 631 = 666.

It is not a de Polignac number, because 22940631 - 2² = 22940627 is a prime.

It is a super-2 number, since 2×22940631² = 1052545101356322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 22940595 and 22940604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22940611) 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, 60501 + ... + 60878.

It is an arithmetic number, because the mean of its divisors is an integer number (2427600).

Almost surely, 2^22940631 is an apocalyptic number.

22940631 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22940631 is a deficient number, since it is larger than the sum of its proper divisors (15900969).

22940631 is a wasteful number, since it uses less digits than its factorization.

22940631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121395 (or 121389 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 22940631 is about 4789.6378777523. The cubic root of 22940631 is about 284.1417950596.

The spelling of 22940631 in words is "twenty-two million, nine hundred forty thousand, six hundred thirty-one".