6931340 has 48 divisors (see below), whose sum is σ = 16003008. Its totient is φ = 2505984.

The previous prime is 6931339. The next prime is 6931361. The reversal of 6931340 is 431396.

It is a Harshad number since it is a multiple of its sum of digits (26).

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 15 ways as a sum of consecutive naturals, for example, 13529 + ... + 14031.

It is an arithmetic number, because the mean of its divisors is an integer number (333396).

Almost surely, 2^6931340 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 6931340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8001504).

6931340 is an abundant number, since it is smaller than the sum of its proper divisors (9071668).

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

6931340 is a wasteful number, since it uses less digits than its factorization.

6931340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 6931340 is about 2632.7438158697. The cubic root of 6931340 is about 190.6656247736.

The spelling of 6931340 in words is "six million, nine hundred thirty-one thousand, three hundred forty".