22841216 has 16 divisors (see below), whose sum is σ = 45504240. Its totient is φ = 11420544.

The previous prime is 22841209. The next prime is 22841219. The reversal of 22841216 is 61214822.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×22841216² = 1043442296717312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22841219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89096 + ... + 89351.

It is an arithmetic number, because the mean of its divisors is an integer number (2844015).

Almost surely, 2^22841216 is an apocalyptic number.

It is an amenable number.

22841216 is a deficient number, since it is larger than the sum of its proper divisors (22663024).

22841216 is an equidigital number, since it uses as much as digits as its factorization.

22841216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178461 (or 178449 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 22841216 is about 4779.2484764867. The cubic root of 22841216 is about 283.7307505685.

The spelling of 22841216 in words is "twenty-two million, eight hundred forty-one thousand, two hundred sixteen".