22146816 has 36 divisors (see below), whose sum is σ = 58944872. Its totient is φ = 7382016.

The previous prime is 22146809. The next prime is 22146841. The reversal of 22146816 is 61864122.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13651 + ... + 15186.

Almost surely, 2^22146816 is an apocalyptic number.

It is an amenable number.

22146816 is an abundant number, since it is smaller than the sum of its proper divisors (36798056).

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

22146816 is an equidigital number, since it uses as much as digits as its factorization.

22146816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28856 (or 28842 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 22146816 is about 4706.0403738175. The cubic root of 22146816 is about 280.8258610446.

The spelling of 22146816 in words is "twenty-two million, one hundred forty-six thousand, eight hundred sixteen".