6434432 has 32 divisors (see below), whose sum is σ = 13577220. Its totient is φ = 3026944.

The previous prime is 6434431. The next prime is 6434443. The reversal of 6434432 is 2344346.

It can be written as a sum of positive squares in 2 ways, for example, as 6431296 + 3136 = 2536^2 + 56^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6434431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698 + ... + 3654.

Almost surely, 2^6434432 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 6434432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6788610).

6434432 is an abundant number, since it is smaller than the sum of its proper divisors (7142788).

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

6434432 is a wasteful number, since it uses less digits than its factorization.

6434432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988 (or 2976 counting only the distinct ones).

The product of its digits is 6912, while the sum is 26.

The square root of 6434432 is about 2536.6182211756. The cubic root of 6434432 is about 185.9959146596.

Adding to 6434432 its reverse (2344346), we get a palindrome (8778778).

The spelling of 6434432 in words is "six million, four hundred thirty-four thousand, four hundred thirty-two".