6343940 has 12 divisors (see below), whose sum is σ = 13322316. Its totient is φ = 2537568.

The previous prime is 6343927. The next prime is 6343949. The reversal of 6343940 is 493436.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3161284 + 3182656 = 1778^2 + 1784^2 .

It is not an unprimeable number, because it can be changed into a prime (6343949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158579 + ... + 158618.

It is an arithmetic number, because the mean of its divisors is an integer number (1110193).

Almost surely, 2^6343940 is an apocalyptic number.

It is an amenable number.

6343940 is an abundant number, since it is smaller than the sum of its proper divisors (6978376).

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

6343940 is a wasteful number, since it uses less digits than its factorization.

6343940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317206 (or 317204 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 6343940 is about 2518.7179278355. The cubic root of 6343940 is about 185.1198638851.

The spelling of 6343940 in words is "six million, three hundred forty-three thousand, nine hundred forty".