6439330 has 16 divisors (see below), whose sum is σ = 11750904. Its totient is φ = 2540160.

The previous prime is 6439327. The next prime is 6439331. The reversal of 6439330 is 339346.

It can be written as a sum of positive squares in 4 ways, for example, as 5631129 + 808201 = 2373^2 + 899^2 .

It is not an unprimeable number, because it can be changed into a prime (6439331) 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, 3681 + ... + 5140.

Almost surely, 2^6439330 is an apocalyptic number.

6439330 is a deficient number, since it is larger than the sum of its proper divisors (5311574).

6439330 is a wasteful number, since it uses less digits than its factorization.

6439330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8901.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 6439330 is about 2537.5834961632. The cubic root of 6439330 is about 186.0430971164.

The spelling of 6439330 in words is "six million, four hundred thirty-nine thousand, three hundred thirty".