32013320 has 16 divisors (see below), whose sum is σ = 72030060. Its totient is φ = 12805312.

The previous prime is 32013313. The next prime is 32013323. The reversal of 32013320 is 2331023.

It can be written as a sum of positive squares in 2 ways, for example, as 26030404 + 5982916 = 5102^2 + 2446^2 .

It is a junction number, because it is equal to n+sod(n) for n = 32013295 and 32013304.

It is not an unprimeable number, because it can be changed into a prime (32013323) 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 3 ways as a sum of consecutive naturals, for example, 400127 + ... + 400206.

Almost surely, 2^32013320 is an apocalyptic number.

It is an amenable number.

32013320 is an abundant number, since it is smaller than the sum of its proper divisors (40016740).

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

32013320 is a wasteful number, since it uses less digits than its factorization.

32013320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800344 (or 800340 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 32013320 is about 5658.0314597924. The cubic root of 32013320 is about 317.5242546623.

Adding to 32013320 its reverse (2331023), we get a palindrome (34344343).

The spelling of 32013320 in words is "thirty-two million, thirteen thousand, three hundred twenty".