22906690 has 16 divisors (see below), whose sum is σ = 41300928. Its totient is φ = 9147376.

The previous prime is 22906687. The next prime is 22906693. The reversal of 22906690 is 9660922.

It is an interprime number because it is at equal distance from previous prime (22906687) and next prime (22906693).

It is a super-2 number, since 2×22906690² = 1049432893512200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22906693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5889 + ... + 8971.

It is an arithmetic number, because the mean of its divisors is an integer number (2581308).

Almost surely, 2^22906690 is an apocalyptic number.

22906690 is a deficient number, since it is larger than the sum of its proper divisors (18394238).

22906690 is a wasteful number, since it uses less digits than its factorization.

22906690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 22906690 is about 4786.0933964978. The cubic root of 22906690 is about 284.0015952433.

The spelling of 22906690 in words is "twenty-two million, nine hundred six thousand, six hundred ninety".