6378018 has 32 divisors (see below), whose sum is σ = 13305600. Its totient is φ = 2036496.

The previous prime is 6378011. The next prime is 6378037. The reversal of 6378018 is 8108736.

It is a super-2 number, since 2×6378018² = 81358227216648, which contains 22 as substring.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 6378018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6378011) 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, 15013 + ... + 15431.

It is an arithmetic number, because the mean of its divisors is an integer number (415800).

Almost surely, 2^6378018 is an apocalyptic number.

6378018 is an abundant number, since it is smaller than the sum of its proper divisors (6927582).

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

6378018 is a wasteful number, since it uses less digits than its factorization.

6378018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 6378018 is about 2525.4738169302. The cubic root of 6378018 is about 185.4507440852.

The spelling of 6378018 in words is "six million, three hundred seventy-eight thousand, eighteen".