6441330 has 64 divisors (see below), whose sum is σ = 18167040. Its totient is φ = 1430784.

The previous prime is 6441319. The next prime is 6441343. The reversal of 6441330 is 331446.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 6441297 and 6441306.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7356 + ... + 8184.

It is an arithmetic number, because the mean of its divisors is an integer number (283860).

Almost surely, 2^6441330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6441330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9083520).

6441330 is an abundant number, since it is smaller than the sum of its proper divisors (11725710).

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

6441330 is a wasteful number, since it uses less digits than its factorization.

6441330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 6441330 is about 2537.9775412718. The cubic root of 6441330 is about 186.0623562462.

Adding to 6441330 its reverse (331446), we get a palindrome (6772776).

The spelling of 6441330 in words is "six million, four hundred forty-one thousand, three hundred thirty".