22434816 has 88 divisors (see below), whose sum is σ = 61246240. Its totient is φ = 7299072.

The previous prime is 22434803. The next prime is 22434823. The reversal of 22434816 is 61843422.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205770 + ... + 205878.

It is an arithmetic number, because the mean of its divisors is an integer number (695980).

Almost surely, 2^22434816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22434816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30623120).

22434816 is an abundant number, since it is smaller than the sum of its proper divisors (38811424).

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

22434816 is a wasteful number, since it uses less digits than its factorization.

22434816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 181 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 22434816 is about 4736.5405096969. The cubic root of 22434816 is about 282.0379205583.

The spelling of 22434816 in words is "twenty-two million, four hundred thirty-four thousand, eight hundred sixteen".