6319940 has 48 divisors (see below), whose sum is σ = 15120000. Its totient is φ = 2196480.

The previous prime is 6319927. The next prime is 6319961. The reversal of 6319940 is 499136.

6319940 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6319897 and 6319906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4436 + ... + 5684.

It is an arithmetic number, because the mean of its divisors is an integer number (315000).

Almost surely, 2^6319940 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 6319940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7560000).

6319940 is an abundant number, since it is smaller than the sum of its proper divisors (8800060).

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

6319940 is a wasteful number, since it uses less digits than its factorization.

6319940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292 (or 1290 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 6319940 is about 2513.9490846077. The cubic root of 6319940 is about 184.8861242212.

The spelling of 6319940 in words is "six million, three hundred nineteen thousand, nine hundred forty".