6694240 has 96 divisors (see below), whose sum is σ = 18627840. Its totient is φ = 2225664.

The previous prime is 6694229. The next prime is 6694249. The reversal of 6694240 is 424966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6694249) 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, 48091 + ... + 48229.

It is an arithmetic number, because the mean of its divisors is an integer number (194040).

Almost surely, 2^6694240 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 6694240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9313920).

6694240 is an abundant number, since it is smaller than the sum of its proper divisors (11933600).

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

6694240 is a wasteful number, since it uses less digits than its factorization.

6694240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 6694240 is about 2587.3229408019. The cubic root of 6694240 is about 188.4663238674.

The spelling of 6694240 in words is "six million, six hundred ninety-four thousand, two hundred forty".