18414789 has 16 divisors (see below), whose sum is σ = 26316672. Its totient is φ = 11423808.

The previous prime is 18414763. The next prime is 18414811. The reversal of 18414789 is 98741481.

It is not a de Polignac number, because 18414789 - 2⁷ = 18414661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18414789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18414719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1054 + ... + 6159.

It is an arithmetic number, because the mean of its divisors is an integer number (1644792).

Almost surely, 2^18414789 is an apocalyptic number.

It is an amenable number.

18414789 is a deficient number, since it is larger than the sum of its proper divisors (7901883).

18414789 is a wasteful number, since it uses less digits than its factorization.

18414789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276.

The product of its digits is 64512, while the sum is 42.

The square root of 18414789 is about 4291.2456233593. The cubic root of 18414789 is about 264.0719357458.

The spelling of 18414789 in words is "eighteen million, four hundred fourteen thousand, seven hundred eighty-nine".