16004688 has 160 divisors (see below), whose sum is σ = 52377600. Its totient is φ = 4105728.

The previous prime is 16004687. The next prime is 16004713. The reversal of 16004688 is 88640061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16004687) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 146778 + ... + 146886.

It is an arithmetic number, because the mean of its divisors is an integer number (327360).

Almost surely, 2^16004688 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 16004688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26188800).

16004688 is an abundant number, since it is smaller than the sum of its proper divisors (36372912).

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

16004688 is a wasteful number, since it uses less digits than its factorization.

16004688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 16004688 is about 4000.5859570818. The cubic root of 16004688 is about 252.0088180336.

The spelling of 16004688 in words is "sixteen million, four thousand, six hundred eighty-eight".