6018381 has 12 divisors (see below), whose sum is σ = 9015552. Its totient is φ = 4012092.

The previous prime is 6018377. The next prime is 6018401. The reversal of 6018381 is 1838106.

It is not a de Polignac number, because 6018381 - 2² = 6018377 is a prime.

It is a super-3 number, since 3×6018381³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6018301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12141 + ... + 12626.

It is an arithmetic number, because the mean of its divisors is an integer number (751296).

Almost surely, 2^6018381 is an apocalyptic number.

It is an amenable number.

6018381 is a deficient number, since it is larger than the sum of its proper divisors (2997171).

6018381 is an equidigital number, since it uses as much as digits as its factorization.

6018381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24782 (or 24770 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 6018381 is about 2453.2388795223. The cubic root of 6018381 is about 181.8974284170.

The spelling of 6018381 in words is "six million, eighteen thousand, three hundred eighty-one".