18042711 has 4 divisors (see below), whose sum is σ = 24056952. Its totient is φ = 12028472.

The previous prime is 18042683. The next prime is 18042719. The reversal of 18042711 is 11724081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11724081 = 3 ⋅3908027.

It is a cyclic number.

It is not a de Polignac number, because 18042711 - 2¹¹ = 18040663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18042719) 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, 3007116 + ... + 3007121.

It is an arithmetic number, because the mean of its divisors is an integer number (6014238).

Almost surely, 2^18042711 is an apocalyptic number.

18042711 is a deficient number, since it is larger than the sum of its proper divisors (6014241).

18042711 is an equidigital number, since it uses as much as digits as its factorization.

18042711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6014240.

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 18042711 is about 4247.6712443408. The cubic root of 18042711 is about 262.2812617695.

Adding to 18042711 its reverse (11724081), we get a palindrome (29766792).

The spelling of 18042711 in words is "eighteen million, forty-two thousand, seven hundred eleven".