1683416842 has 8 divisors (see below), whose sum is σ = 2530750500. Its totient is φ = 839833344.

The previous prime is 1683416783. The next prime is 1683416843. The reversal of 1683416842 is 2486143861.

It can be written as a sum of positive squares in 2 ways, for example, as 1556381401 + 127035441 = 39451^2 + 11271^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1683416843) 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, 936417 + ... + 938212.

Almost surely, 2^1683416842 is an apocalyptic number.

1683416842 is a deficient number, since it is larger than the sum of its proper divisors (847333658).

1683416842 is a wasteful number, since it uses less digits than its factorization.

1683416842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875080.

The product of its digits is 221184, while the sum is 43.

The square root of 1683416842 is about 41029.4630966577. The cubic root of 1683416842 is about 1189.5897750379.

The spelling of 1683416842 in words is "one billion, six hundred eighty-three million, four hundred sixteen thousand, eight hundred forty-two".