18341019 has 8 divisors (see below), whose sum is σ = 27171920. Its totient is φ = 12227328.

The previous prime is 18341017. The next prime is 18341027. The reversal of 18341019 is 91014381.

It is not a de Polignac number, because 18341019 - 2¹ = 18341017 is a prime.

It is a super-2 number, since 2×18341019² = 672785955916722, 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: 679297 = 18341019 / (1 + 8 + 3 + 4 + 1 + 0 + 1 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18340983 and 18341001.

It is not an unprimeable number, because it can be changed into a prime (18341017) 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, 339622 + ... + 339675.

It is an arithmetic number, because the mean of its divisors is an integer number (3396490).

Almost surely, 2^18341019 is an apocalyptic number.

18341019 is a deficient number, since it is larger than the sum of its proper divisors (8830901).

18341019 is an equidigital number, since it uses as much as digits as its factorization.

18341019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679306 (or 679300 counting only the distinct ones).

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

The square root of 18341019 is about 4282.6415913546. The cubic root of 18341019 is about 263.7188380635.

The spelling of 18341019 in words is "eighteen million, three hundred forty-one thousand, nineteen".