6740018 has 4 divisors (see below), whose sum is σ = 10110030. Its totient is φ = 3370008.

The previous prime is 6739987. The next prime is 6740021. The reversal of 6740018 is 8100476.

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., 5536609 + 1203409 = 2353^2 + 1097^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1685003 + ... + 1685006.

Almost surely, 2^6740018 is an apocalyptic number.

6740018 is a deficient number, since it is larger than the sum of its proper divisors (3370012).

6740018 is a wasteful number, since it uses less digits than its factorization.

6740018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370011.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 6740018 is about 2596.1544638176. The cubic root of 6740018 is about 188.8949520289.

The spelling of 6740018 in words is "six million, seven hundred forty thousand, eighteen".