22446891 has 6 divisors (see below), whose sum is σ = 32423300. Its totient is φ = 14964588.

The previous prime is 22446889. The next prime is 22446913. The reversal of 22446891 is 19864422.

It is not a de Polignac number, because 22446891 - 2¹ = 22446889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22446811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1247041 + ... + 1247058.

Almost surely, 2^22446891 is an apocalyptic number.

22446891 is a deficient number, since it is larger than the sum of its proper divisors (9976409).

22446891 is a wasteful number, since it uses less digits than its factorization.

22446891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494105 (or 2494102 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 22446891 is about 4737.8150027201. The cubic root of 22446891 is about 282.0885115248.

The spelling of 22446891 in words is "twenty-two million, four hundred forty-six thousand, eight hundred ninety-one".