8040218 has 8 divisors (see below), whose sum is σ = 12769812. Its totient is φ = 3783616.

The previous prime is 8040217. The next prime is 8040229. The reversal of 8040218 is 8120408.

It can be written as a sum of positive squares in 2 ways, for example, as 7546009 + 494209 = 2747^2 + 703^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8040193 and 8040202.

It is not an unprimeable number, because it can be changed into a prime (8040217) 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, 118205 + ... + 118272.

Almost surely, 2^8040218 is an apocalyptic number.

8040218 is a deficient number, since it is larger than the sum of its proper divisors (4729594).

8040218 is a wasteful number, since it uses less digits than its factorization.

8040218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236496.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 8040218 is about 2835.5278168271. The cubic root of 8040218 is about 200.3345899357.

The spelling of 8040218 in words is "eight million, forty thousand, two hundred eighteen".