33040130320 has 20 divisors (see below), whose sum is σ = 76818303180. Its totient is φ = 13216052096.

The previous prime is 33040130293. The next prime is 33040130323. The reversal of 33040130320 is 2303104033.

It can be written as a sum of positive squares in 2 ways, for example, as 13748031504 + 19292098816 = 117252^2 + 138896^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (33040130323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206500735 + ... + 206500894.

It is an arithmetic number, because the mean of its divisors is an integer number (3840915159).

Almost surely, 2^33040130320 is an apocalyptic number.

It is an amenable number.

33040130320 is an abundant number, since it is smaller than the sum of its proper divisors (43778172860).

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

33040130320 is a wasteful number, since it uses less digits than its factorization.

33040130320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413001642 (or 413001636 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 33040130320 its reverse (2303104033), we get a palindrome (35343234353).

The spelling of 33040130320 in words is "thirty-three billion, forty million, one hundred thirty thousand, three hundred twenty".