1682172 has 18 divisors (see below), whose sum is σ = 4252248. Its totient is φ = 560712.

The previous prime is 1682159. The next prime is 1682179. The reversal of 1682172 is 2712861.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1682179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23328 + ... + 23399.

It is an arithmetic number, because the mean of its divisors is an integer number (236236).

2^1682172 is an apocalyptic number.

1682172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1682172 is an abundant number, since it is smaller than the sum of its proper divisors (2570076).

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

1682172 is a wasteful number, since it uses less digits than its factorization.

1682172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46737 (or 46732 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 1682172 is about 1296.9857362361. The cubic root of 1682172 is about 118.9296479394.

The spelling of 1682172 in words is "one million, six hundred eighty-two thousand, one hundred seventy-two".