33020402020 has 24 divisors (see below), whose sum is σ = 69542694144. Its totient is φ = 13170094176.

The previous prime is 33020401963. The next prime is 33020402021. The reversal of 33020402020 is 2020402033.

It is a junction number, because it is equal to n+sod(n) for n = 33020401985 and 33020402003.

It is not an unprimeable number, because it can be changed into a prime (33020402021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2372052 + ... + 2385931.

It is an arithmetic number, because the mean of its divisors is an integer number (2897612256).

Almost surely, 2^33020402020 is an apocalyptic number.

It is an amenable number.

33020402020 is an abundant number, since it is smaller than the sum of its proper divisors (36522292124).

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

33020402020 is a wasteful number, since it uses less digits than its factorization.

33020402020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4758339 (or 4758337 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 33020402020 its reverse (2020402033), we get a palindrome (35040804053).

The spelling of 33020402020 in words is "thirty-three billion, twenty million, four hundred two thousand, twenty".