18241361 has 8 divisors (see below), whose sum is σ = 18939648. Its totient is φ = 17550000.

The previous prime is 18241343. The next prime is 18241367. The reversal of 18241361 is 16314281.

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

It is a cyclic number.

It is not a de Polignac number, because 18241361 - 2²² = 14047057 is a prime.

It is a super-2 number, since 2×18241361² = 665494502264642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18241361.

It is not an unprimeable number, because it can be changed into a prime (18241367) 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, 3986 + ... + 7236.

It is an arithmetic number, because the mean of its divisors is an integer number (2367456).

Almost surely, 2^18241361 is an apocalyptic number.

It is an amenable number.

18241361 is a deficient number, since it is larger than the sum of its proper divisors (698287).

18241361 is a wasteful number, since it uses less digits than its factorization.

18241361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3463.

The product of its digits is 1152, while the sum is 26.

The square root of 18241361 is about 4270.9906345016. The cubic root of 18241361 is about 263.2403216173.

The spelling of 18241361 in words is "eighteen million, two hundred forty-one thousand, three hundred sixty-one".