2031218 has 16 divisors (see below), whose sum is σ = 3602880. Its totient is φ = 840336.

The previous prime is 2031217. The next prime is 2031223. The reversal of 2031218 is 8121302.

It is a junction number, because it is equal to n+sod(n) for n = 2031196 and 2031205.

It is not an unprimeable number, because it can be changed into a prime (2031217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2096 + ... + 2907.

It is an arithmetic number, because the mean of its divisors is an integer number (225180).

2^2031218 is an apocalyptic number.

2031218 is a deficient number, since it is larger than the sum of its proper divisors (1571662).

2031218 is a wasteful number, since it uses less digits than its factorization.

2031218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5041.

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

The square root of 2031218 is about 1425.2080549871. The cubic root of 2031218 is about 126.6442604258.

The spelling of 2031218 in words is "two million, thirty-one thousand, two hundred eighteen".