18430119 has 8 divisors (see below), whose sum is σ = 27303920. Its totient is φ = 12286728.

The previous prime is 18430081. The next prime is 18430121. The reversal of 18430119 is 91103481.

It is a de Polignac number, because none of the positive numbers 2^k-18430119 is a prime.

It is a super-2 number, since 2×18430119² = 679338572708322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 682597 = 18430119 / (1 + 8 + 4 + 3 + 0 + 1 + 1 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18430092 and 18430101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18430169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341272 + ... + 341325.

It is an arithmetic number, because the mean of its divisors is an integer number (3412990).

Almost surely, 2^18430119 is an apocalyptic number.

18430119 is a deficient number, since it is larger than the sum of its proper divisors (8873801).

18430119 is an equidigital number, since it uses as much as digits as its factorization.

18430119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682606 (or 682600 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 18430119 is about 4293.0314464257. The cubic root of 18430119 is about 264.1451938924.

It can be divided in two parts, 184 and 30119, that added together give a palindrome (30303).

The spelling of 18430119 in words is "eighteen million, four hundred thirty thousand, one hundred nineteen".