6444530 has 32 divisors (see below), whose sum is σ = 12410496. Its totient is φ = 2401024.

The previous prime is 6444521. The next prime is 6444533. The reversal of 6444530 is 354446.

6444530 is nontrivially palindromic in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 6444530.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6444533) 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, 28277 + ... + 28503.

It is an arithmetic number, because the mean of its divisors is an integer number (387828).

Almost surely, 2^6444530 is an apocalyptic number.

6444530 is a deficient number, since it is larger than the sum of its proper divisors (5965966).

6444530 is a wasteful number, since it uses less digits than its factorization.

6444530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 6444530 is about 2538.6078862243. The cubic root of 6444530 is about 186.0931625637.

Adding to 6444530 its reverse (354446), we get a palindrome (6798976).

It can be divided in two parts, 644 and 4530, that multiplied together give a triangular number (2917320 = T₂₄₁₅).

The spelling of 6444530 in words is "six million, four hundred forty-four thousand, five hundred thirty".