634705474 has 32 divisors (see below), whose sum is σ = 1062840240. Its totient is φ = 282362112.

The previous prime is 634705471. The next prime is 634705481. The reversal of 634705474 is 474507436.

It can be written as a sum of positive squares in 8 ways, for example, as 240405025 + 394300449 = 15505^2 + 19857^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (634705471) 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, 101832 + ... + 107884.

Almost surely, 2^634705474 is an apocalyptic number.

634705474 is a deficient number, since it is larger than the sum of its proper divisors (428134766).

634705474 is a wasteful number, since it uses less digits than its factorization.

634705474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6214.

The product of its (nonzero) digits is 282240, while the sum is 40.

The square root of 634705474 is about 25193.3617050206. The cubic root of 634705474 is about 859.3908946376.

The spelling of 634705474 in words is "six hundred thirty-four million, seven hundred five thousand, four hundred seventy-four".