2340218 has 4 divisors (see below), whose sum is σ = 3510330. Its totient is φ = 1170108.

The previous prime is 2340209. The next prime is 2340223. The reversal of 2340218 is 8120432.

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., 2271049 + 69169 = 1507^2 + 263^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2340218.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585053 + ... + 585056.

2^2340218 is an apocalyptic number.

2340218 is a deficient number, since it is larger than the sum of its proper divisors (1170112).

2340218 is a wasteful number, since it uses less digits than its factorization.

2340218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170111.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2340218 is about 1529.7771079474. Note that the first 3 decimals coincide. The cubic root of 2340218 is about 132.7655620893.

The spelling of 2340218 in words is "two million, three hundred forty thousand, two hundred eighteen".