32220320 has 48 divisors (see below), whose sum is σ = 83045088. Its totient is φ = 11715840.

The previous prime is 32220317. The next prime is 32220341. The reversal of 32220320 is 2302223.

It is a junction number, because it is equal to n+sod(n) for n = 32220295 and 32220304.

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, 7394 + ... + 10913.

It is an arithmetic number, because the mean of its divisors is an integer number (1730106).

Almost surely, 2^32220320 is an apocalyptic number.

It is an amenable number.

32220320 is an abundant number, since it is smaller than the sum of its proper divisors (50824768).

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

32220320 is a wasteful number, since it uses less digits than its factorization.

32220320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18333 (or 18325 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 32220320 is about 5676.2945659999. The cubic root of 32220320 is about 318.2071616672.

Adding to 32220320 its reverse (2302223), we get a palindrome (34522543).

It can be divided in two parts, 322203 and 20, that added together give a palindrome (322223).

The spelling of 32220320 in words is "thirty-two million, two hundred twenty thousand, three hundred twenty".