6343040 has 128 divisors (see below), whose sum is σ = 17845920. Its totient is φ = 2129920.

The previous prime is 6343039. The next prime is 6343063. The reversal of 6343040 is 403436.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119654 + ... + 119706.

Almost surely, 2^6343040 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 6343040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8922960).

6343040 is an abundant number, since it is smaller than the sum of its proper divisors (11502880).

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

6343040 is a wasteful number, since it uses less digits than its factorization.

6343040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 6343040 is about 2518.5392591739. The cubic root of 6343040 is about 185.1111092963. Note that the first 4 decimals are identical.

Adding to 6343040 its reverse (403436), we get a palindrome (6746476).

The spelling of 6343040 in words is "six million, three hundred forty-three thousand, forty".