16872456 has 64 divisors (see below), whose sum is σ = 44870400. Its totient is φ = 5272128.

The previous prime is 16872451. The next prime is 16872467. The reversal of 16872456 is 65427861.

It is not an unprimeable number, because it can be changed into a prime (16872451) 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 15 ways as a sum of consecutive naturals, for example, 74215 + ... + 74441.

It is an arithmetic number, because the mean of its divisors is an integer number (701100).

Almost surely, 2^16872456 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 16872456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22435200).

16872456 is an abundant number, since it is smaller than the sum of its proper divisors (27997944).

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

16872456 is a wasteful number, since it uses less digits than its factorization.

16872456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418 (or 414 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 16872456 is about 4107.6095237985. The cubic root of 16872456 is about 256.4835019350.

The spelling of 16872456 in words is "sixteen million, eight hundred seventy-two thousand, four hundred fifty-six".