6331340 has 12 divisors (see below), whose sum is σ = 13295856. Its totient is φ = 2532528.

The previous prime is 6331337. The next prime is 6331379. The reversal of 6331340 is 431336.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 316567 = 6331340 / (6 + 3 + 3 + 1 + 3 + 4 + 0).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158264 + ... + 158303.

It is an arithmetic number, because the mean of its divisors is an integer number (1107988).

Almost surely, 2^6331340 is an apocalyptic number.

It is an amenable number.

6331340 is an abundant number, since it is smaller than the sum of its proper divisors (6964516).

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

6331340 is a wasteful number, since it uses less digits than its factorization.

6331340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316576 (or 316574 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 6331340 is about 2516.2154120822. The cubic root of 6331340 is about 184.9972242096.

Adding to 6331340 its reverse (431336), we get a palindrome (6762676).

The spelling of 6331340 in words is "six million, three hundred thirty-one thousand, three hundred forty".