22808161 has 8 divisors (see below), whose sum is σ = 23326560. Its totient is φ = 22294272.

The previous prime is 22808153. The next prime is 22808213. The reversal of 22808161 is 16180822.

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

It is a cyclic number.

It is not a de Polignac number, because 22808161 - 2³ = 22808153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22808131) 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, 10386 + ... + 12388.

It is an arithmetic number, because the mean of its divisors is an integer number (2915820).

Almost surely, 2^22808161 is an apocalyptic number.

It is an amenable number.

22808161 is a deficient number, since it is larger than the sum of its proper divisors (518399).

22808161 is a wasteful number, since it uses less digits than its factorization.

22808161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 22808161 is about 4775.7890447548. The cubic root of 22808161 is about 283.5938161224.

Adding to 22808161 its reverse (16180822), we get a palindrome (38988983).

The spelling of 22808161 in words is "twenty-two million, eight hundred eight thousand, one hundred sixty-one".