6439488 has 56 divisors (see below), whose sum is σ = 18592800. Its totient is φ = 1950720.

The previous prime is 6439483. The next prime is 6439493. The reversal of 6439488 is 8849346.

It is an interprime number because it is at equal distance from previous prime (6439483) and next prime (6439493).

It is not an unprimeable number, because it can be changed into a prime (6439483) 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, 588 + ... + 3636.

Almost surely, 2^6439488 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 6439488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9296400).

6439488 is an abundant number, since it is smaller than the sum of its proper divisors (12153312).

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

6439488 is a wasteful number, since it uses less digits than its factorization.

6439488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3075 (or 3065 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 6439488 is about 2537.6146279528. The cubic root of 6439488 is about 186.0446187327.

The spelling of 6439488 in words is "six million, four hundred thirty-nine thousand, four hundred eighty-eight".