2043018 has 12 divisors (see below), whose sum is σ = 4426578. Its totient is φ = 681000.

The previous prime is 2043017. The next prime is 2043023. The reversal of 2043018 is 8103402.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1520289 + 522729 = 1233^2 + 723^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 113501 = 2043018 / (2 + 0 + 4 + 3 + 0 + 1 + 8).

It is not an unprimeable number, because it can be changed into a prime (2043011) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 56733 + ... + 56768.

2^2043018 is an apocalyptic number.

2043018 is an abundant number, since it is smaller than the sum of its proper divisors (2383560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2043018 is a wasteful number, since it uses less digits than its factorization.

2043018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113509 (or 113506 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2043018 is about 1429.3418065669. The cubic root of 2043018 is about 126.8890261698.

The spelling of 2043018 in words is "two million, forty-three thousand, eighteen".