16845140 has 48 divisors (see below), whose sum is σ = 38704512. Its totient is φ = 6120576.

The previous prime is 16845067. The next prime is 16845161. The reversal of 16845140 is 4154861.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16937 + ... + 17903.

It is an arithmetic number, because the mean of its divisors is an integer number (806344).

Almost surely, 2^16845140 is an apocalyptic number.

16845140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16845140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19352256).

16845140 is an abundant number, since it is smaller than the sum of its proper divisors (21859372).

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

16845140 is a wasteful number, since it uses less digits than its factorization.

16845140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056 (or 1054 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 16845140 is about 4104.2831286353. The cubic root of 16845140 is about 256.3450141410.

The spelling of 16845140 in words is "sixteen million, eight hundred forty-five thousand, one hundred forty".