16823436 has 96 divisors (see below), whose sum is σ = 48168960. Its totient is φ = 4463424.

The previous prime is 16823399. The next prime is 16823447. The reversal of 16823436 is 63432861.

It is a junction number, because it is equal to n+sod(n) for n = 16823397 and 16823406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132405 + ... + 132531.

It is an arithmetic number, because the mean of its divisors is an integer number (501760).

Almost surely, 2^16823436 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 16823436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24084480).

16823436 is an abundant number, since it is smaller than the sum of its proper divisors (31345524).

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

16823436 is a wasteful number, since it uses less digits than its factorization.

16823436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 241 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 16823436 is about 4101.6382093013. The cubic root of 16823436 is about 256.2348715241.

The spelling of 16823436 in words is "sixteen million, eight hundred twenty-three thousand, four hundred thirty-six".