1684735474 has 8 divisors (see below), whose sum is σ = 2527449948. Its totient is φ = 842252160.

The previous prime is 1684735463. The next prime is 1684735489. The reversal of 1684735474 is 4745374861.

It can be written as a sum of positive squares in 2 ways, for example, as 1391812249 + 292923225 = 37307^2 + 17115^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38247 + ... + 69514.

Almost surely, 2^1684735474 is an apocalyptic number.

1684735474 is a deficient number, since it is larger than the sum of its proper divisors (842714474).

1684735474 is a wasteful number, since it uses less digits than its factorization.

1684735474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115580.

The product of its digits is 2257920, while the sum is 49.

The square root of 1684735474 is about 41045.5292815186. The cubic root of 1684735474 is about 1189.9002985933.

The spelling of 1684735474 in words is "one billion, six hundred eighty-four million, seven hundred thirty-five thousand, four hundred seventy-four".