18014869 has 4 divisors (see below), whose sum is σ = 18963040. Its totient is φ = 17066700.

The previous prime is 18014863. The next prime is 18014891. The reversal of 18014869 is 96841081.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18014869 - 2⁷ = 18014741 is a prime.

It is a super-2 number, since 2×18014869² = 649071010174322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18014863) 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 3 ways as a sum of consecutive naturals, for example, 474057 + ... + 474094.

It is an arithmetic number, because the mean of its divisors is an integer number (4740760).

Almost surely, 2^18014869 is an apocalyptic number.

18014869 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

18014869 is a deficient number, since it is larger than the sum of its proper divisors (948171).

18014869 is an equidigital number, since it uses as much as digits as its factorization.

18014869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948170.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 18014869 is about 4244.3926538434. The cubic root of 18014869 is about 262.1462821595.

It can be divided in two parts, 1801 and 4869, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 18014869 in words is "eighteen million, fourteen thousand, eight hundred sixty-nine".