16286864 has 40 divisors (see below), whose sum is σ = 35622720. Its totient is φ = 7145600.

The previous prime is 16286849. The next prime is 16286887. The reversal of 16286864 is 46868261.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3509 + ... + 6699.

It is an arithmetic number, because the mean of its divisors is an integer number (890568).

Almost surely, 2^16286864 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 16286864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17811360).

16286864 is an abundant number, since it is smaller than the sum of its proper divisors (19335856).

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

16286864 is a wasteful number, since it uses less digits than its factorization.

16286864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3239 (or 3233 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 16286864 is about 4035.6987003492. The cubic root of 16286864 is about 253.4812401909.

The spelling of 16286864 in words is "sixteen million, two hundred eighty-six thousand, eight hundred sixty-four".