33033220 has 24 divisors (see below), whose sum is σ = 75676608. Its totient is φ = 12012000.

The previous prime is 33033173. The next prime is 33033239. The reversal of 33033220 is 2233033.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 33033194 and 33033203.

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, 74856 + ... + 75295.

It is an arithmetic number, because the mean of its divisors is an integer number (3153192).

Almost surely, 2^33033220 is an apocalyptic number.

It is an amenable number.

33033220 is an abundant number, since it is smaller than the sum of its proper divisors (42643388).

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

33033220 is a wasteful number, since it uses less digits than its factorization.

33033220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150171 (or 150169 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 16.

The square root of 33033220 is about 5747.4533490930. The cubic root of 33033220 is about 320.8610275001.

Adding to 33033220 its reverse (2233033), we get a palindrome (35266253).

The spelling of 33033220 in words is "thirty-three million, thirty-three thousand, two hundred twenty".