6431488 has 72 divisors (see below), whose sum is σ = 15223712. Its totient is φ = 2654208.

The previous prime is 6431483. The next prime is 6431501. The reversal of 6431488 is 8841346.

It is not an unprimeable number, because it can be changed into a prime (6431483) 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, 66256 + ... + 66352.

Almost surely, 2^6431488 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 6431488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7611856).

6431488 is an abundant number, since it is smaller than the sum of its proper divisors (8792224).

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

6431488 is an equidigital number, since it uses as much as digits as its factorization.

6431488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 143 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 6431488 is about 2536.0378546071. The cubic root of 6431488 is about 185.9675435718.

The spelling of 6431488 in words is "six million, four hundred thirty-one thousand, four hundred eighty-eight".