1686160 has 40 divisors (see below), whose sum is σ = 4481856. Its totient is φ = 577920.

The previous prime is 1686149. The next prime is 1686169. The reversal of 1686160 is 616861.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (1686169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 946 + ... + 2065.

2^1686160 is an apocalyptic number.

1686160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1686160 is an abundant number, since it is smaller than the sum of its proper divisors (2795696).

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

1686160 is a wasteful number, since it uses less digits than its factorization.

1686160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3031 (or 3025 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1686160 is about 1298.5222370064. The cubic root of 1686160 is about 119.0235577022.

It can be divided in two parts, 168 and 6160, that added together give a triangular number (6328 = T₁₁₂).

The spelling of 1686160 in words is "one million, six hundred eighty-six thousand, one hundred sixty".