6307640 has 32 divisors (see below), whose sum is σ = 14398560. Its totient is φ = 2486400.

The previous prime is 6307633. The next prime is 6307657. The reversal of 6307640 is 467036.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 2.

It is a congruent number.

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, 1730 + ... + 3950.

It is an arithmetic number, because the mean of its divisors is an integer number (449955).

Almost surely, 2^6307640 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 6307640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7199280).

6307640 is an abundant number, since it is smaller than the sum of its proper divisors (8090920).

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

6307640 is a wasteful number, since it uses less digits than its factorization.

6307640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303 (or 2299 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 6307640 is about 2511.5015429022. The cubic root of 6307640 is about 184.7661032386.

The spelling of 6307640 in words is "six million, three hundred seven thousand, six hundred forty".