6394018 has 4 divisors (see below), whose sum is σ = 9591030. Its totient is φ = 3197008.

The previous prime is 6394009. The next prime is 6394043. The reversal of 6394018 is 8104936.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6185169 + 208849 = 2487^2 + 457^2 .

It is a Smith number, since the sum of its digits (31) 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 as a sum of consecutive naturals, namely, 1598503 + ... + 1598506.

Almost surely, 2^6394018 is an apocalyptic number.

6394018 is a deficient number, since it is larger than the sum of its proper divisors (3197012).

6394018 is a wasteful number, since it uses less digits than its factorization.

6394018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3197011.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 6394018 is about 2528.6395551759. The cubic root of 6394018 is about 185.6056895117.

The spelling of 6394018 in words is "six million, three hundred ninety-four thousand, eighteen".