2018306 has 4 divisors (see below), whose sum is σ = 3027462. Its totient is φ = 1009152.

The previous prime is 2018299. The next prime is 2018309. The reversal of 2018306 is 6038102.

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., 1311025 + 707281 = 1145^2 + 841^2 .

It is not an unprimeable number, because it can be changed into a prime (2018309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504575 + ... + 504578.

2^2018306 is an apocalyptic number.

2018306 is a deficient number, since it is larger than the sum of its proper divisors (1009156).

2018306 is a wasteful number, since it uses less digits than its factorization.

2018306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009155.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2018306 is about 1420.6709682400. The cubic root of 2018306 is about 126.3753400192.

The spelling of 2018306 in words is "two million, eighteen thousand, three hundred six".