33130333432 has 32 divisors (see below), whose sum is σ = 71966095200. Its totient is φ = 14004209664.

The previous prime is 33130333399. The next prime is 33130333441. The reversal of 33130333432 is 23433303133.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 33130333432.

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, 4048057 + ... + 4056232.

It is an arithmetic number, because the mean of its divisors is an integer number (2248940475).

Almost surely, 2^33130333432 is an apocalyptic number.

It is an amenable number.

33130333432 is an abundant number, since it is smaller than the sum of its proper divisors (38835761768).

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

33130333432 is a wasteful number, since it uses less digits than its factorization.

33130333432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8104375 (or 8104371 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 28.

Adding to 33130333432 its reverse (23433303133), we get a palindrome (56563636565).

The spelling of 33130333432 in words is "thirty-three billion, one hundred thirty million, three hundred thirty-three thousand, four hundred thirty-two".