6605144 has 64 divisors (see below), whose sum is σ = 15671040. Its totient is φ = 2540160.

The previous prime is 6605119. The next prime is 6605149. The reversal of 6605144 is 4415066.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6605149) 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, 31199 + ... + 31409.

It is an arithmetic number, because the mean of its divisors is an integer number (244860).

Almost surely, 2^6605144 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 6605144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7835520).

6605144 is an abundant number, since it is smaller than the sum of its proper divisors (9065896).

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

6605144 is a wasteful number, since it uses less digits than its factorization.

6605144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 6605144 is about 2570.0474703787. The cubic root of 6605144 is about 187.6264652010.

The spelling of 6605144 in words is "six million, six hundred five thousand, one hundred forty-four".