16445868 has 48 divisors (see below), whose sum is σ = 42779520. Its totient is φ = 4886784.

The previous prime is 16445861. The next prime is 16445873. The reversal of 16445868 is 86854461.

It is not an unprimeable number, because it can be changed into a prime (16445861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1755 + ... + 5997.

It is an arithmetic number, because the mean of its divisors is an integer number (891240).

Almost surely, 2^16445868 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 16445868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21389760).

16445868 is an abundant number, since it is smaller than the sum of its proper divisors (26333652).

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

16445868 is a wasteful number, since it uses less digits than its factorization.

16445868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4286 (or 4284 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 16445868 is about 4055.3505397191. The cubic root of 16445868 is about 254.3034585822.

The spelling of 16445868 in words is "sixteen million, four hundred forty-five thousand, eight hundred sixty-eight".