2081604974 has 32 divisors (see below), whose sum is σ = 3252420864. Its totient is φ = 998484480.

The previous prime is 2081604961. The next prime is 2081605003. The reversal of 2081604974 is 4794061802.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1376879 + ... + 1378389.

It is an arithmetic number, because the mean of its divisors is an integer number (101638152).

Almost surely, 2^2081604974 is an apocalyptic number.

2081604974 is a deficient number, since it is larger than the sum of its proper divisors (1170815890).

2081604974 is a wasteful number, since it uses less digits than its factorization.

2081604974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 2081604974 is about 45624.6093024368. The cubic root of 2081604974 is about 1276.8291007917.

The spelling of 2081604974 in words is "two billion, eighty-one million, six hundred four thousand, nine hundred seventy-four".