16674816 has 104 divisors (see below), whose sum is σ = 47180160. Its totient is φ = 5226496.

The previous prime is 16674811. The next prime is 16674817. The reversal of 16674816 is 61847661.

It is a happy number.

It is a nialpdrome in base 16.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16674811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282595 + ... + 282653.

Almost surely, 2^16674816 is an apocalyptic number.

16674816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16674816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23590080).

16674816 is an abundant number, since it is smaller than the sum of its proper divisors (30505344).

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

16674816 is an equidigital number, since it uses as much as digits as its factorization.

16674816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 87 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 16674816 is about 4083.4808680830. The cubic root of 16674816 is about 255.4781034208.

The spelling of 16674816 in words is "sixteen million, six hundred seventy-four thousand, eight hundred sixteen".