1682371209 has 16 divisors (see below), whose sum is σ = 2359217664. Its totient is φ = 1064918400.

The previous prime is 1682371177. The next prime is 1682371219. The reversal of 1682371209 is 9021732861.

It is not a de Polignac number, because 1682371209 - 2⁵ = 1682371177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1682371219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165732 + ... + 175589.

It is an arithmetic number, because the mean of its divisors is an integer number (147451104).

Almost surely, 2^1682371209 is an apocalyptic number.

It is an amenable number.

1682371209 is a deficient number, since it is larger than the sum of its proper divisors (676846455).

1682371209 is a wasteful number, since it uses less digits than its factorization.

1682371209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341408.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 1682371209 is about 41016.7186522764. The cubic root of 1682371209 is about 1189.3434244961.

The spelling of 1682371209 in words is "one billion, six hundred eighty-two million, three hundred seventy-one thousand, two hundred nine".