18341018 has 8 divisors (see below), whose sum is σ = 27530580. Its totient is φ = 9164160.

The previous prime is 18341017. The next prime is 18341027. The reversal of 18341018 is 81014381.

It can be written as a sum of positive squares in 2 ways, for example, as 18088009 + 253009 = 4253^2 + 503^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

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 3 ways as a sum of consecutive naturals, for example, 2378 + ... + 6506.

Almost surely, 2^18341018 is an apocalyptic number.

18341018 is a deficient number, since it is larger than the sum of its proper divisors (9189562).

18341018 is a wasteful number, since it uses less digits than its factorization.

18341018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6352.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 18341018 is about 4282.6414746042. The cubic root of 18341018 is about 263.7188332706.

Adding to 18341018 its reverse (81014381), we get a palindrome (99355399).

The spelling of 18341018 in words is "eighteen million, three hundred forty-one thousand, eighteen".