22116804 has 12 divisors (see below), whose sum is σ = 51605904. Its totient is φ = 7372264.

The previous prime is 22116803. The next prime is 22116827. The reversal of 22116804 is 40861122.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (22116803) 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, 921522 + ... + 921545.

It is an arithmetic number, because the mean of its divisors is an integer number (4300492).

Almost surely, 2^22116804 is an apocalyptic number.

It is an amenable number.

22116804 is an abundant number, since it is smaller than the sum of its proper divisors (29489100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22116804 is a wasteful number, since it uses less digits than its factorization.

22116804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843074 (or 1843072 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 22116804 is about 4702.8506248870. The cubic root of 22116804 is about 280.6989510679.

Adding to 22116804 its reverse (40861122), we get a palindrome (62977926).

The spelling of 22116804 in words is "twenty-two million, one hundred sixteen thousand, eight hundred four".