33132220 has 36 divisors (see below), whose sum is σ = 76483512. Its totient is φ = 12047200.

The previous prime is 33132163. The next prime is 33132241. The reversal of 33132220 is 2223133.

It is a junction number, because it is equal to n+sod(n) for n = 33132194 and 33132203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4426 + ... + 9265.

It is an arithmetic number, because the mean of its divisors is an integer number (2124542).

Almost surely, 2^33132220 is an apocalyptic number.

It is an amenable number.

33132220 is an abundant number, since it is smaller than the sum of its proper divisors (43351292).

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

33132220 is a wasteful number, since it uses less digits than its factorization.

33132220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13722 (or 13709 counting only the distinct ones).

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

The square root of 33132220 is about 5756.0594159546. The cubic root of 33132220 is about 321.1812461684.

Adding to 33132220 its reverse (2223133), we get a palindrome (35355353).

The spelling of 33132220 in words is "thirty-three million, one hundred thirty-two thousand, two hundred twenty".