6444032 has 88 divisors (see below), whose sum is σ = 15720960. Its totient is φ = 2580480.

The previous prime is 6444019. The next prime is 6444041. The reversal of 6444032 is 2304446.

It is a happy number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6443989 and 6444007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207857 + ... + 207887.

Almost surely, 2^6444032 is an apocalyptic number.

6444032 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6444032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7860480).

6444032 is an abundant number, since it is smaller than the sum of its proper divisors (9276928).

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

6444032 is a wasteful number, since it uses less digits than its factorization.

6444032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 6444032 is about 2538.5097990750. The cubic root of 6444032 is about 186.0883690007.

Adding to 6444032 its reverse (2304446), we get a palindrome (8748478).

The spelling of 6444032 in words is "six million, four hundred forty-four thousand, thirty-two".