16804512 has 144 divisors (see below), whose sum is σ = 52284960. Its totient is φ = 5101056.

The previous prime is 16804507. The next prime is 16804519. The reversal of 16804512 is 21540861.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (16804519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202423 + ... + 202505.

It is an arithmetic number, because the mean of its divisors is an integer number (363090).

Almost surely, 2^16804512 is an apocalyptic number.

16804512 is a gapful number since it is divisible by the number (12) 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 16804512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26142480).

16804512 is an abundant number, since it is smaller than the sum of its proper divisors (35480448).

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

16804512 is a wasteful number, since it uses less digits than its factorization.

16804512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 16804512 is about 4099.3306770740. The cubic root of 16804512 is about 256.1387594102.

The spelling of 16804512 in words is "sixteen million, eight hundred four thousand, five hundred twelve".