16538676 has 72 divisors (see below), whose sum is σ = 48990816. Its totient is φ = 4294080.

The previous prime is 16538659. The next prime is 16538677. The reversal of 16538676 is 67683561.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16538677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5190 + ... + 7746.

It is an arithmetic number, because the mean of its divisors is an integer number (680428).

Almost surely, 2^16538676 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 16538676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24495408).

16538676 is an abundant number, since it is smaller than the sum of its proper divisors (32452140).

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

16538676 is a wasteful number, since it uses less digits than its factorization.

16538676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589 (or 2580 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 16538676 is about 4066.7771023256. Note that the first 3 decimals coincide. The cubic root of 16538676 is about 254.7809268016.

The spelling of 16538676 in words is "sixteen million, five hundred thirty-eight thousand, six hundred seventy-six".