16089456 has 40 divisors (see below), whose sum is σ = 42100480. Its totient is φ = 5294016.

The previous prime is 16089449. The next prime is 16089457. The reversal of 16089456 is 65498061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16089457) 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 7 ways as a sum of consecutive naturals, for example, 1671 + ... + 5913.

It is an arithmetic number, because the mean of its divisors is an integer number (1052512).

Almost surely, 2^16089456 is an apocalyptic number.

16089456 is a gapful number since it is divisible by the number (16) 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 16089456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21050240).

16089456 is an abundant number, since it is smaller than the sum of its proper divisors (26011024).

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

16089456 is a wasteful number, since it uses less digits than its factorization.

16089456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4333 (or 4327 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 16089456 is about 4011.1664139001. The cubic root of 16089456 is about 252.4529520550.

Subtracting from 16089456 its product of nonzero digits (51840), we obtain a triangular number (16037616 = T₅₆₆₃).

The spelling of 16089456 in words is "sixteen million, eighty-nine thousand, four hundred fifty-six".