2146684874 has 4 divisors (see below), whose sum is σ = 3220027314. Its totient is φ = 1073342436.

The previous prime is 2146684867. The next prime is 2146684901. The reversal of 2146684874 is 4784866412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1475097649 + 671587225 = 38407^2 + 25915^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536671217 + ... + 536671220.

Almost surely, 2^2146684874 is an apocalyptic number.

2146684874 is a deficient number, since it is larger than the sum of its proper divisors (1073342440).

2146684874 is a wasteful number, since it uses less digits than its factorization.

2146684874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073342439.

The product of its digits is 2064384, while the sum is 50.

The square root of 2146684874 is about 46332.3307637334. The cubic root of 2146684874 is about 1289.9991735267. Note that the first 3 decimals are identical.

The spelling of 2146684874 in words is "two billion, one hundred forty-six million, six hundred eighty-four thousand, eight hundred seventy-four".