16866842 has 8 divisors (see below), whose sum is σ = 25428000. Its totient is φ = 8390844.

The previous prime is 16866827. The next prime is 16866853. The reversal of 16866842 is 24866861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 16866842.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20792 + ... + 21587.

It is an arithmetic number, because the mean of its divisors is an integer number (3178500).

Almost surely, 2^16866842 is an apocalyptic number.

16866842 is a deficient number, since it is larger than the sum of its proper divisors (8561158).

16866842 is a wasteful number, since it uses less digits than its factorization.

16866842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42580.

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

The square root of 16866842 is about 4106.9261011126. The cubic root of 16866842 is about 256.4550520538.

The spelling of 16866842 in words is "sixteen million, eight hundred sixty-six thousand, eight hundred forty-two".