33243132340 has 72 divisors (see below), whose sum is σ = 79612410528. Its totient is φ = 11562788160.

The previous prime is 33243132319. The next prime is 33243132347. The reversal of 33243132340 is 4323134233.

It is a happy number.

It is a super-2 number, since 2×33243132340² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33243132299 and 33243132308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33243132347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26442 + ... + 259201.

It is an arithmetic number, because the mean of its divisors is an integer number (1105727924).

Almost surely, 2^33243132340 is an apocalyptic number.

It is an amenable number.

33243132340 is an abundant number, since it is smaller than the sum of its proper divisors (46369278188).

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

33243132340 is a wasteful number, since it uses less digits than its factorization.

33243132340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285709 (or 285684 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 33243132340 its reverse (4323134233), we get a palindrome (37566266573).

The spelling of 33243132340 in words is "thirty-three billion, two hundred forty-three million, one hundred thirty-two thousand, three hundred forty".