6429888 has 84 divisors (see below), whose sum is σ = 19217640. Its totient is φ = 2108160.

The previous prime is 6429887. The next prime is 6429931. The reversal of 6429888 is 8889246.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (6429881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105378 + ... + 105438.

Almost surely, 2^6429888 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 6429888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9608820).

6429888 is an abundant number, since it is smaller than the sum of its proper divisors (12787752).

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

6429888 is an equidigital number, since it uses as much as digits as its factorization.

6429888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 66 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 6429888 is about 2535.7223822808. The cubic root of 6429888 is about 185.9521208709.

The spelling of 6429888 in words is "six million, four hundred twenty-nine thousand, eight hundred eighty-eight".