22682991 has 12 divisors (see below), whose sum is σ = 31618328. Its totient is φ = 14463504.

The previous prime is 22682977. The next prime is 22683013. The reversal of 22682991 is 19928622.

It is not a de Polignac number, because 22682991 - 2¹⁸ = 22420847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22682921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5560 + ... + 8733.

Almost surely, 2^22682991 is an apocalyptic number.

22682991 is a deficient number, since it is larger than the sum of its proper divisors (8935337).

22682991 is a wasteful number, since it uses less digits than its factorization.

22682991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14342 (or 14319 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 22682991 is about 4762.6663750467. Note that the first 3 decimals coincide. The cubic root of 22682991 is about 283.0740815019.

The spelling of 22682991 in words is "twenty-two million, six hundred eighty-two thousand, nine hundred ninety-one".