6724340 has 48 divisors (see below), whose sum is σ = 16528512. Its totient is φ = 2249856.

The previous prime is 6724307. The next prime is 6724351. The reversal of 6724340 is 434276.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5462 + ... + 6578.

It is an arithmetic number, because the mean of its divisors is an integer number (344344).

Almost surely, 2^6724340 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 6724340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8264256).

6724340 is an abundant number, since it is smaller than the sum of its proper divisors (9804172).

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

6724340 is a wasteful number, since it uses less digits than its factorization.

6724340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176 (or 1174 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 6724340 is about 2593.1332399242. The cubic root of 6724340 is about 188.7483750573.

Subtracting from 6724340 its reverse (434276), we obtain a square (6290064 = 2508²).

The spelling of 6724340 in words is "six million, seven hundred twenty-four thousand, three hundred forty".