6390018 has 24 divisors (see below), whose sum is σ = 13942656. Its totient is φ = 2115000.

The previous prime is 6390001. The next prime is 6390029. The reversal of 6390018 is 8100936.

It is a junction number, because it is equal to n+sod(n) for n = 6389973 and 6390000.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1543 + ... + 3893.

It is an arithmetic number, because the mean of its divisors is an integer number (580944).

Almost surely, 2^6390018 is an apocalyptic number.

6390018 is an abundant number, since it is smaller than the sum of its proper divisors (7552638).

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

6390018 is a wasteful number, since it uses less digits than its factorization.

6390018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510 (or 2507 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 6390018 is about 2527.8484922954. The cubic root of 6390018 is about 185.5669774099.

The spelling of 6390018 in words is "six million, three hundred ninety thousand, eighteen".