33243241240 has 32 divisors (see below), whose sum is σ = 81597047760. Its totient is φ = 12088451200.

The previous prime is 33243241231. The next prime is 33243241247. The reversal of 33243241240 is 4214234233.

It is a super-2 number, since 2×33243241240² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33243241199 and 33243241208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33243241247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37775971 + ... + 37776850.

Almost surely, 2^33243241240 is an apocalyptic number.

It is an amenable number.

33243241240 is an abundant number, since it is smaller than the sum of its proper divisors (48353806520).

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

33243241240 is a wasteful number, since it uses less digits than its factorization.

33243241240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75552843 (or 75552839 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 33243241240 its reverse (4214234233), we get a palindrome (37457475473).

The spelling of 33243241240 in words is "thirty-three billion, two hundred forty-three million, two hundred forty-one thousand, two hundred forty".