6345140 has 12 divisors (see below), whose sum is σ = 13324836. Its totient is φ = 2538048.

The previous prime is 6345139. The next prime is 6345149. The reversal of 6345140 is 415436.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1993744 + 4351396 = 1412^2 + 2086^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6345149) 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, 158609 + ... + 158648.

It is an arithmetic number, because the mean of its divisors is an integer number (1110403).

Almost surely, 2^6345140 is an apocalyptic number.

It is an amenable number.

6345140 is an abundant number, since it is smaller than the sum of its proper divisors (6979696).

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

6345140 is a wasteful number, since it uses less digits than its factorization.

6345140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317266 (or 317264 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 6345140 is about 2518.9561330043. The cubic root of 6345140 is about 185.1315353821.

The spelling of 6345140 in words is "six million, three hundred forty-five thousand, one hundred forty".