18241368 has 64 divisors (see below), whose sum is σ = 48576000. Its totient is φ = 5692032.

The previous prime is 18241367. The next prime is 18241397. The reversal of 18241368 is 86314281.

It is a super-2 number, since 2×18241368² = 665495013022848, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 49521 + ... + 49887.

It is an arithmetic number, because the mean of its divisors is an integer number (759000).

Almost surely, 2^18241368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18241368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24288000).

18241368 is an abundant number, since it is smaller than the sum of its proper divisors (30334632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18241368 is a wasteful number, since it uses less digits than its factorization.

18241368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 500 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 18241368 is about 4270.9914539835. The cubic root of 18241368 is about 263.2403552895.

The spelling of 18241368 in words is "eighteen million, two hundred forty-one thousand, three hundred sixty-eight".