6441380 has 96 divisors (see below), whose sum is σ = 16450560. Its totient is φ = 2090880.

The previous prime is 6441377. The next prime is 6441389. The reversal of 6441380 is 831446.

It is not an unprimeable number, because it can be changed into a prime (6441389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96107 + ... + 96173.

It is an arithmetic number, because the mean of its divisors is an integer number (171360).

Almost surely, 2^6441380 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 6441380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8225280).

6441380 is an abundant number, since it is smaller than the sum of its proper divisors (10009180).

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

6441380 is a wasteful number, since it uses less digits than its factorization.

6441380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 6441380 is about 2537.9873916156. The cubic root of 6441380 is about 186.0628376734.

The spelling of 6441380 in words is "six million, four hundred forty-one thousand, three hundred eighty".