2021318 has 8 divisors (see below), whose sum is σ = 3265248. Its totient is φ = 932904.

The previous prime is 2021291. The next prime is 2021321. The reversal of 2021318 is 8131202.

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

It is a junction number, because it is equal to n+sod(n) for n = 2021296 and 2021305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38846 + ... + 38897.

It is an arithmetic number, because the mean of its divisors is an integer number (408156).

2^2021318 is an apocalyptic number.

2021318 is a deficient number, since it is larger than the sum of its proper divisors (1243930).

2021318 is a wasteful number, since it uses less digits than its factorization.

2021318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77758.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2021318 is about 1421.7306355284. The cubic root of 2021318 is about 126.4381737903.

The spelling of 2021318 in words is "two million, twenty-one thousand, three hundred eighteen".