6343218 has 64 divisors (see below), whose sum is σ = 16369920. Its totient is φ = 1783296.

The previous prime is 6343217. The next prime is 6343219. The reversal of 6343218 is 8123436.

It is a happy number.

6343218 is a `hidden beast` number, since 634 + 3 + 21 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (6343217) and next prime (6343219).

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

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

Its product of digits (3456) is a multiple of the sum of its prime factors (288).

It is a junction number, because it is equal to n+sod(n) for n = 6343191 and 6343200.

It is not an unprimeable number, because it can be changed into a prime (6343213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36580 + ... + 36752.

It is an arithmetic number, because the mean of its divisors is an integer number (255780).

Almost surely, 2^6343218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6343218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8184960).

6343218 is an abundant number, since it is smaller than the sum of its proper divisors (10026702).

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

6343218 is a wasteful number, since it uses less digits than its factorization.

6343218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 282 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 6343218 is about 2518.5745968702. The cubic root of 6343218 is about 185.1128408251.

It can be divided in two parts, 6343 and 218, that added together give a 8-th power (6561 = 3⁸).

The spelling of 6343218 in words is "six million, three hundred forty-three thousand, two hundred eighteen".