33530424640 has 112 divisors (see below), whose sum is σ = 85188210624. Its totient is φ = 12526592000.

The previous prime is 33530424637. The next prime is 33530424659. The reversal of 33530424640 is 4642403533.

It is a super-2 number, since 2×33530424640² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 33530424596 and 33530424605.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 689115 + ... + 736165.

Almost surely, 2^33530424640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33530424640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42594105312).

33530424640 is an abundant number, since it is smaller than the sum of its proper divisors (51657785984).

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

33530424640 is a wasteful number, since it uses less digits than its factorization.

33530424640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47216 (or 47206 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 34.

The spelling of 33530424640 in words is "thirty-three billion, five hundred thirty million, four hundred twenty-four thousand, six hundred forty".