6944140 has 48 divisors (see below), whose sum is σ = 16817472. Its totient is φ = 2359296.

The previous prime is 6944111. The next prime is 6944149. The reversal of 6944140 is 414496.

6944140 = 993² + 994² + ... + 999².

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 6944099 and 6944108.

It is not an unprimeable number, because it can be changed into a prime (6944149) by changing a digit.

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, 26892 + ... + 27148.

It is an arithmetic number, because the mean of its divisors is an integer number (350364).

Almost surely, 2^6944140 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 6944140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8408736).

6944140 is an abundant number, since it is smaller than the sum of its proper divisors (9873332).

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

6944140 is a wasteful number, since it uses less digits than its factorization.

6944140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 6944140 is about 2635.1736185686. The cubic root of 6944140 is about 190.7829190363.

The spelling of 6944140 in words is "six million, nine hundred forty-four thousand, one hundred forty".