16856130 has 48 divisors (see below), whose sum is σ = 41401152. Its totient is φ = 4392000.

The previous prime is 16856111. The next prime is 16856131. The reversal of 16856130 is 3165861.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (16856131) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 111555 + ... + 111705.

It is an arithmetic number, because the mean of its divisors is an integer number (862524).

Almost surely, 2^16856130 is an apocalyptic number.

16856130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16856130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20700576).

16856130 is an abundant number, since it is smaller than the sum of its proper divisors (24545022).

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

16856130 is a wasteful number, since it uses less digits than its factorization.

16856130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 16856130 is about 4105.6217555932. The cubic root of 16856130 is about 256.4007496877.

The spelling of 16856130 in words is "sixteen million, eight hundred fifty-six thousand, one hundred thirty".