33020235040 has 48 divisors (see below), whose sum is σ = 84011103288. Its totient is φ = 12192086016.

The previous prime is 33020235037. The next prime is 33020235041. The reversal of 33020235040 is 4053202033.

It can be written as a sum of positive squares in 4 ways, for example, as 28705847184 + 4314387856 = 169428^2 + 65684^2 .

It is not an unprimeable number, because it can be changed into a prime (33020235041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7935477 + ... + 7939636.

Almost surely, 2^33020235040 is an apocalyptic number.

It is an amenable number.

33020235040 is an abundant number, since it is smaller than the sum of its proper divisors (50990868248).

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

33020235040 is a wasteful number, since it uses less digits than its factorization.

33020235040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15875141 (or 15875133 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 22.

Adding to 33020235040 its reverse (4053202033), we get a palindrome (37073437073).

The spelling of 33020235040 in words is "thirty-three billion, twenty million, two hundred thirty-five thousand, forty".