22808661 has 8 divisors (see below), whose sum is σ = 30448320. Its totient is φ = 15187392.

The previous prime is 22808659. The next prime is 22808671. The reversal of 22808661 is 16680822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22808661 - 2¹ = 22808659 is a prime.

It is a super-2 number, since 2×22808661² = 1040470033225842, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22808641) 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, 1380 + ... + 6893.

It is an arithmetic number, because the mean of its divisors is an integer number (3806040).

Almost surely, 2^22808661 is an apocalyptic number.

It is an amenable number.

22808661 is a deficient number, since it is larger than the sum of its proper divisors (7639659).

22808661 is an equidigital number, since it uses as much as digits as its factorization.

22808661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9195.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 22808661 is about 4775.8413918387. The cubic root of 22808661 is about 283.5958884197.

The spelling of 22808661 in words is "twenty-two million, eight hundred eight thousand, six hundred sixty-one".