6444330 has 16 divisors (see below), whose sum is σ = 15466464. Its totient is φ = 1718480.

The previous prime is 6444329. The next prime is 6444337. The reversal of 6444330 is 334446.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 6444330.

It is not an unprimeable number, because it can be changed into a prime (6444337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107376 + ... + 107435.

It is an arithmetic number, because the mean of its divisors is an integer number (966654).

Almost surely, 2^6444330 is an apocalyptic number.

6444330 is an abundant number, since it is smaller than the sum of its proper divisors (9022134).

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

6444330 is a wasteful number, since it uses less digits than its factorization.

6444330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214821.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 6444330 is about 2538.5684942503. The cubic root of 6444330 is about 186.0912374677.

Adding to 6444330 its reverse (334446), we get a palindrome (6778776).

The spelling of 6444330 in words is "six million, four hundred forty-four thousand, three hundred thirty".