33043440340 has 24 divisors (see below), whose sum is σ = 69491675232. Its totient is φ = 13198242720.

The previous prime is 33043440319. The next prime is 33043440347. The reversal of 33043440340 is 4304434033.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 33043440299 and 33043440308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33043440347) 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, 1181674 + ... + 1209313.

It is an arithmetic number, because the mean of its divisors is an integer number (2895486468).

Almost surely, 2^33043440340 is an apocalyptic number.

It is an amenable number.

33043440340 is an abundant number, since it is smaller than the sum of its proper divisors (36448234892).

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

33043440340 is a wasteful number, since it uses less digits than its factorization.

33043440340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391687 (or 2391685 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 33043440340 its reverse (4304434033), we get a palindrome (37347874373).

The spelling of 33043440340 in words is "thirty-three billion, forty-three million, four hundred forty thousand, three hundred forty".