16885812 has 12 divisors (see below), whose sum is σ = 39400256. Its totient is φ = 5628600.

The previous prime is 16885807. The next prime is 16885867. The reversal of 16885812 is 21858861.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 703564 + ... + 703587.

Almost surely, 2^16885812 is an apocalyptic number.

16885812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16885812 is an abundant number, since it is smaller than the sum of its proper divisors (22514444).

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

16885812 is a wasteful number, since it uses less digits than its factorization.

16885812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407158 (or 1407156 counting only the distinct ones).

The product of its digits is 30720, while the sum is 39.

The square root of 16885812 is about 4109.2349652946. The cubic root of 16885812 is about 256.5511603357.

The spelling of 16885812 in words is "sixteen million, eight hundred eighty-five thousand, eight hundred twelve".