6432500 has 60 divisors (see below), whose sum is σ = 14695296. Its totient is φ = 2460000.

The previous prime is 6432457. The next prime is 6432509. The reversal of 6432500 is 52346.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6432509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 77459 + ... + 77541.

Almost surely, 2^6432500 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 6432500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7347648).

6432500 is an abundant number, since it is smaller than the sum of its proper divisors (8262796).

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

6432500 is a wasteful number, since it uses less digits than its factorization.

6432500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 6432500 is about 2536.2373705945. The cubic root of 6432500 is about 185.9772971096.

Adding to 6432500 its reverse (52346), we get a palindrome (6484846).

The spelling of 6432500 in words is "six million, four hundred thirty-two thousand, five hundred".