6405234 has 32 divisors (see below), whose sum is σ = 14121216. Its totient is φ = 1920720.

The previous prime is 6405221. The next prime is 6405263. The reversal of 6405234 is 4325046.

6405234 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6609 + ... + 7515.

It is an arithmetic number, because the mean of its divisors is an integer number (441288).

Almost surely, 2^6405234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6405234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7060608).

6405234 is an abundant number, since it is smaller than the sum of its proper divisors (7715982).

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

6405234 is a wasteful number, since it uses less digits than its factorization.

6405234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 6405234 is about 2530.8563768021. The cubic root of 6405234 is about 185.7141522118.

The spelling of 6405234 in words is "six million, four hundred five thousand, two hundred thirty-four".