22840117 has 4 divisors (see below), whose sum is σ = 22948576. Its totient is φ = 22731660.

The previous prime is 22840093. The next prime is 22840121. The reversal of 22840117 is 71104822.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22840117 - 2¹⁹ = 22315829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22840091 and 22840100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22840177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53913 + ... + 54334.

It is an arithmetic number, because the mean of its divisors is an integer number (5737144).

Almost surely, 2^22840117 is an apocalyptic number.

It is an amenable number.

22840117 is a deficient number, since it is larger than the sum of its proper divisors (108459).

22840117 is a wasteful number, since it uses less digits than its factorization.

22840117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108458.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 22840117 is about 4779.1334988678. The cubic root of 22840117 is about 283.7261999483.

Adding to 22840117 its reverse (71104822), we get a palindrome (93944939).

The spelling of 22840117 in words is "twenty-two million, eight hundred forty thousand, one hundred seventeen".