6944640 has 64 divisors (see below), whose sum is σ = 22142160. Its totient is φ = 1851392.

The previous prime is 6944627. The next prime is 6944657. The reversal of 6944640 is 464496.

6944640 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112 + ... + 3728.

Almost surely, 2^6944640 is an apocalyptic number.

6944640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6944640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11071080).

6944640 is an abundant number, since it is smaller than the sum of its proper divisors (15197520).

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

6944640 is a wasteful number, since it uses less digits than its factorization.

6944640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3639 (or 3627 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 6944640 is about 2635.2684872703. The cubic root of 6944640 is about 190.7874979172.

The spelling of 6944640 in words is "six million, nine hundred forty-four thousand, six hundred forty".