33240244243240 has 64 divisors (see below), whose sum is σ = 75642473356560. Its totient is φ = 13145237360640.

The previous prime is 33240244243189. The next prime is 33240244243247. The reversal of 33240244243240 is 4234244204233.

It can be written as a sum of positive squares in 8 ways, for example, as 7896853097956 + 25343391145284 = 2810134^2 + 5034222^2 .

It is a super-2 number, since 2×33240244243240² (a number of 28 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 33240244243240.

It is not an unprimeable number, because it can be changed into a prime (33240244243247) 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, 7467571 + ... + 11056450.

Almost surely, 2^{33240244243240} is an apocalyptic number.

It is an amenable number.

33240244243240 is an abundant number, since it is smaller than the sum of its proper divisors (42402229113320).

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

33240244243240 is a wasteful number, since it uses less digits than its factorization.

33240244243240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18524542 (or 18524538 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 37.

Adding to 33240244243240 its reverse (4234244204233), we get a palindrome (37474488447473).

The spelling of 33240244243240 in words is "thirty-three trillion, two hundred forty billion, two hundred forty-four million, two hundred forty-three thousand, two hundred forty".