32213320 has 16 divisors (see below), whose sum is σ = 72480060. Its totient is φ = 12885312.

The previous prime is 32213281. The next prime is 32213327. The reversal of 32213320 is 2331223.

It can be written as a sum of positive squares in 2 ways, for example, as 32194276 + 19044 = 5674^2 + 138^2 .

It is a junction number, because it is equal to n+sod(n) for n = 32213294 and 32213303.

It is not an unprimeable number, because it can be changed into a prime (32213327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402627 + ... + 402706.

Almost surely, 2^32213320 is an apocalyptic number.

It is an amenable number.

32213320 is an abundant number, since it is smaller than the sum of its proper divisors (40266740).

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

32213320 is a wasteful number, since it uses less digits than its factorization.

32213320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805344 (or 805340 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 32213320 is about 5675.6779330755. The cubic root of 32213320 is about 318.1841160502.

Adding to 32213320 its reverse (2331223), we get a palindrome (34544543).

The spelling of 32213320 in words is "thirty-two million, two hundred thirteen thousand, three hundred twenty".