33012434240 has 28 divisors (see below), whose sum is σ = 78610859796. Its totient is φ = 13204973568.

The previous prime is 33012434239. The next prime is 33012434297. The reversal of 33012434240 is 4243421033.

It can be written as a sum of positive squares in 2 ways, for example, as 15338327104 + 17674107136 = 123848^2 + 132944^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51581609 + ... + 51582248.

It is an arithmetic number, because the mean of its divisors is an integer number (2807530707).

Almost surely, 2^33012434240 is an apocalyptic number.

It is an amenable number.

33012434240 is an abundant number, since it is smaller than the sum of its proper divisors (45598425556).

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

33012434240 is a wasteful number, since it uses less digits than its factorization.

33012434240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103163874 (or 103163864 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 33012434240 its reverse (4243421033), we get a palindrome (37255855273).

The spelling of 33012434240 in words is "thirty-three billion, twelve million, four hundred thirty-four thousand, two hundred forty".