1682018 has 8 divisors (see below), whose sum is σ = 2717148. Its totient is φ = 776304.

The previous prime is 1682017. The next prime is 1682047. The reversal of 1682018 is 8102861.

It can be written as a sum of positive squares in 2 ways, for example, as 1605289 + 76729 = 1267^2 + 277^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 64693 = 1682018 / (1 + 6 + 8 + 2 + 0 + 1 + 8).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1682017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32321 + ... + 32372.

2^1682018 is an apocalyptic number.

1682018 is a deficient number, since it is larger than the sum of its proper divisors (1035130).

1682018 is a wasteful number, since it uses less digits than its factorization.

1682018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64708.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 1682018 is about 1296.9263664526. The cubic root of 1682018 is about 118.9260185593.

Adding to 1682018 its reverse (8102861), we get a palindrome (9784879).

The spelling of 1682018 in words is "one million, six hundred eighty-two thousand, eighteen".