32228560 has 160 divisors (see below), whose sum is σ = 97493760. Its totient is φ = 9621504.

The previous prime is 32228527. The next prime is 32228563. The reversal of 32228560 is 6582223.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32228563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138204 + ... + 138436.

It is an arithmetic number, because the mean of its divisors is an integer number (609336).

Almost surely, 2^32228560 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 32228560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48746880).

32228560 is an abundant number, since it is smaller than the sum of its proper divisors (65265200).

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

32228560 is a wasteful number, since it uses less digits than its factorization.

32228560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 32228560 is about 5677.0203452163. The cubic root of 32228560 is about 318.2342853738.

It can be divided in two parts, 322 and 28560, that added together give a palindrome (28882).

The spelling of 32228560 in words is "thirty-two million, two hundred twenty-eight thousand, five hundred sixty".