16845812 has 12 divisors (see below), whose sum is σ = 29634276. Its totient is φ = 8378880.

The previous prime is 16845811. The next prime is 16845823. The reversal of 16845812 is 21854861.

It can be written as a sum of positive squares in 2 ways, for example, as 6948496 + 9897316 = 2636^2 + 3146^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16845811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10139 + ... + 11682.

It is an arithmetic number, because the mean of its divisors is an integer number (2469523).

Almost surely, 2^16845812 is an apocalyptic number.

It is an amenable number.

16845812 is a deficient number, since it is larger than the sum of its proper divisors (12788464).

16845812 is a wasteful number, since it uses less digits than its factorization.

16845812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22018 (or 22016 counting only the distinct ones).

The product of its digits is 15360, while the sum is 35.

The square root of 16845812 is about 4104.3649935160. The cubic root of 16845812 is about 256.3484228702.

The spelling of 16845812 in words is "sixteen million, eight hundred forty-five thousand, eight hundred twelve".