33005344220 has 24 divisors (see below), whose sum is σ = 72959182800. Its totient is φ = 12507288192.

The previous prime is 33005344217. The next prime is 33005344231. The reversal of 33005344220 is 2244350033.

It is a self number, because there is not a number n which added to its sum of digits gives 33005344220.

It is a congruent number.

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, 43427705 + ... + 43428464.

It is an arithmetic number, because the mean of its divisors is an integer number (3039965950).

Almost surely, 2^33005344220 is an apocalyptic number.

It is an amenable number.

33005344220 is an abundant number, since it is smaller than the sum of its proper divisors (39953838580).

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

33005344220 is a wasteful number, since it uses less digits than its factorization.

33005344220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86856197 (or 86856195 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 26.

Adding to 33005344220 its reverse (2244350033), we get a palindrome (35249694253).

The spelling of 33005344220 in words is "thirty-three billion, five million, three hundred forty-four thousand, two hundred twenty".