33534425440 has 96 divisors (see below), whose sum is σ = 83464668000. Its totient is φ = 12697141248.

The previous prime is 33534425399. The next prime is 33534425447. The reversal of 33534425440 is 4452443533.

It is a super-2 number, since 2×33534425440² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33534425440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33534425447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4279446 + ... + 4287274.

It is an arithmetic number, because the mean of its divisors is an integer number (869423625).

Almost surely, 2^33534425440 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 33534425440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41732334000).

33534425440 is an abundant number, since it is smaller than the sum of its proper divisors (49930242560).

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

33534425440 is a wasteful number, since it uses less digits than its factorization.

33534425440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9272 (or 9264 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 37.

Adding to 33534425440 its reverse (4452443533), we get a palindrome (37986868973).

The spelling of 33534425440 in words is "thirty-three billion, five hundred thirty-four million, four hundred twenty-five thousand, four hundred forty".