32505460 has 72 divisors (see below), whose sum is σ = 75630240. Its totient is φ = 11726208.

The previous prime is 32505449. The next prime is 32505469. The reversal of 32505460 is 6450523.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32505469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199339 + ... + 199501.

It is an arithmetic number, because the mean of its divisors is an integer number (1050420).

Almost surely, 2^32505460 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 32505460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37815120).

32505460 is an abundant number, since it is smaller than the sum of its proper divisors (43124780).

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

32505460 is a wasteful number, since it uses less digits than its factorization.

32505460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 32505460 is about 5701.3559790632. The cubic root of 32505460 is about 319.1430849543.

Adding to 32505460 its reverse (6450523), we get a palindrome (38955983).

The spelling of 32505460 in words is "thirty-two million, five hundred five thousand, four hundred sixty".