16672734 has 48 divisors (see below), whose sum is σ = 39831792. Its totient is φ = 5007744.

The previous prime is 16672729. The next prime is 16672741. The reversal of 16672734 is 43727661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9234 + ... + 10890.

It is an arithmetic number, because the mean of its divisors is an integer number (829829).

Almost surely, 2^16672734 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16672734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19915896).

16672734 is an abundant number, since it is smaller than the sum of its proper divisors (23159058).

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

16672734 is a wasteful number, since it uses less digits than its factorization.

16672734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721 (or 1718 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 16672734 is about 4083.2259305603. The cubic root of 16672734 is about 255.4674700691.

It can be divided in two parts, 166 and 72734, that added together give a square (72900 = 270²).

The spelling of 16672734 in words is "sixteen million, six hundred seventy-two thousand, seven hundred thirty-four".