33042244240 has 20 divisors (see below), whose sum is σ = 76823218044. Its totient is φ = 13216897664.

The previous prime is 33042244229. The next prime is 33042244243. The reversal of 33042244240 is 4244224033.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3377004544 + 29665239696 = 58112^2 + 172236^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 33042244199 and 33042244208.

It is not an unprimeable number, because it can be changed into a prime (33042244243) 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, 206513947 + ... + 206514106.

Almost surely, 2^33042244240 is an apocalyptic number.

It is an amenable number.

33042244240 is an abundant number, since it is smaller than the sum of its proper divisors (43780973804).

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

33042244240 is a wasteful number, since it uses less digits than its factorization.

33042244240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413028066 (or 413028060 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 33042244240 its reverse (4244224033), we get a palindrome (37286468273).

The spelling of 33042244240 in words is "thirty-three billion, forty-two million, two hundred forty-four thousand, two hundred forty".