6610440 has 64 divisors (see below), whose sum is σ = 20482560. Its totient is φ = 1704960.

The previous prime is 6610427. The next prime is 6610441. The reversal of 6610440 is 440166.

It is not an unprimeable number, because it can be changed into a prime (6610441) 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, 2832 + ... + 4608.

It is an arithmetic number, because the mean of its divisors is an integer number (320040).

Almost surely, 2^6610440 is an apocalyptic number.

6610440 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 6610440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10241280).

6610440 is an abundant number, since it is smaller than the sum of its proper divisors (13872120).

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

6610440 is a wasteful number, since it uses less digits than its factorization.

6610440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822 (or 1818 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 6610440 is about 2571.0775950951. The cubic root of 6610440 is about 187.6765980622.

The spelling of 6610440 in words is "six million, six hundred ten thousand, four hundred forty".