409868474 has 8 divisors (see below), whose sum is σ = 615287988. Its totient is φ = 204772480.

The previous prime is 409868471. The next prime is 409868479. The reversal of 409868474 is 474868904.

It can be written as a sum of positive squares in 2 ways, for example, as 397723249 + 12145225 = 19943^2 + 3485^2 .

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 (409868471) 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, 77687 + ... + 82794.

Almost surely, 2^409868474 is an apocalyptic number.

409868474 is a deficient number, since it is larger than the sum of its proper divisors (205419514).

409868474 is a wasteful number, since it uses less digits than its factorization.

409868474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161760.

The product of its (nonzero) digits is 1548288, while the sum is 50.

The square root of 409868474 is about 20245.2086677317. The cubic root of 409868474 is about 742.8164365233.

The spelling of 409868474 in words is "four hundred nine million, eight hundred sixty-eight thousand, four hundred seventy-four".