6661344 has 24 divisors (see below), whose sum is σ = 17486280. Its totient is φ = 2220416.

The previous prime is 6661337. The next prime is 6661349. The reversal of 6661344 is 4431666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6661349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34599 + ... + 34790.

It is an arithmetic number, because the mean of its divisors is an integer number (728595).

Almost surely, 2^6661344 is an apocalyptic number.

It is an amenable number.

6661344 is an abundant number, since it is smaller than the sum of its proper divisors (10824936).

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

6661344 is a wasteful number, since it uses less digits than its factorization.

6661344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69402 (or 69394 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 6661344 is about 2580.9579616879. The cubic root of 6661344 is about 188.1571042291.

It can be divided in two parts, 6 and 661344, that multiplied together give a square (3968064 = 1992²).

The spelling of 6661344 in words is "six million, six hundred sixty-one thousand, three hundred forty-four".