6463140 has 24 divisors (see below), whose sum is σ = 18096960. Its totient is φ = 1723488.

The previous prime is 6463139. The next prime is 6463151. The reversal of 6463140 is 413646.

It is a self number, because there is not a number n which added to its sum of digits gives 6463140.

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 7 ways as a sum of consecutive naturals, for example, 53800 + ... + 53919.

It is an arithmetic number, because the mean of its divisors is an integer number (754040).

Almost surely, 2^6463140 is an apocalyptic number.

6463140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6463140 is an abundant number, since it is smaller than the sum of its proper divisors (11633820).

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

6463140 is a wasteful number, since it uses less digits than its factorization.

6463140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107731 (or 107729 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 6463140 is about 2542.2706386221. The cubic root of 6463140 is about 186.2721187490.

Adding to 6463140 its reverse (413646), we get a palindrome (6876786).

The spelling of 6463140 in words is "six million, four hundred sixty-three thousand, one hundred forty".