3018943 has 4 divisors (see below), whose sum is σ = 3039088. Its totient is φ = 2998800.

The previous prime is 3018919. The next prime is 3018947. The reversal of 3018943 is 3498103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3498103 = 7 ⋅499729.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3018943 is a prime.

It is a super-2 number, since 2×3018943² = 18228033674498, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

3018943 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3018947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9846 + ... + 10147.

It is an arithmetic number, because the mean of its divisors is an integer number (759772).

Almost surely, 2^3018943 is an apocalyptic number.

3018943 is a deficient number, since it is larger than the sum of its proper divisors (20145).

3018943 is a wasteful number, since it uses less digits than its factorization.

3018943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20144.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 3018943 is about 1737.5105755074. The cubic root of 3018943 is about 144.5278818178.

The spelling of 3018943 in words is "three million, eighteen thousand, nine hundred forty-three".