1682045 has 8 divisors (see below), whose sum is σ = 2026296. Its totient is φ = 1340416.

The previous prime is 1682017. The next prime is 1682047. The reversal of 1682045 is 5402861.

It can be written as a sum of positive squares in 4 ways, for example, as 89401 + 1592644 = 299^2 + 1262^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1682045 - 2²⁰ = 633469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1682047) 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 7 ways as a sum of consecutive naturals, for example, 1289 + ... + 2241.

It is an arithmetic number, because the mean of its divisors is an integer number (253287).

2^1682045 is an apocalyptic number.

It is an amenable number.

1682045 is a deficient number, since it is larger than the sum of its proper divisors (344251).

1682045 is an equidigital number, since it uses as much as digits as its factorization.

1682045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1682045 is about 1296.9367756371. The cubic root of 1682045 is about 118.9266548952.

It can be divided in two parts, 16820 and 45, that multiplied together give a square (756900 = 870²).

The spelling of 1682045 in words is "one million, six hundred eighty-two thousand, forty-five".