6308879440 has 80 divisors (see below), whose sum is σ = 15398300160. Its totient is φ = 2400698880.

The previous prime is 6308879431. The next prime is 6308879449. The reversal of 6308879440 is 449788036.

It is an interprime number because it is at equal distance from previous prime (6308879431) and next prime (6308879449).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6308879449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124762 + ... + 167878.

It is an arithmetic number, because the mean of its divisors is an integer number (192478752).

Almost surely, 2^6308879440 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 6308879440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7699150080).

6308879440 is an abundant number, since it is smaller than the sum of its proper divisors (9089420720).

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

6308879440 is a wasteful number, since it uses less digits than its factorization.

6308879440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43220 (or 43214 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 6308879440 is about 79428.4548508908. The cubic root of 6308879440 is about 1847.7820451585.

The spelling of 6308879440 in words is "six billion, three hundred eight million, eight hundred seventy-nine thousand, four hundred forty".