33420320340 has 48 divisors (see below), whose sum is σ = 102083889600. Its totient is φ = 8101895680.

The previous prime is 33420320333. The next prime is 33420320341. The reversal of 33420320340 is 4302302433.

It is a super-2 number, since 2×33420320340² (a number of 22 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 33420320340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33420320341) 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, 25317765 + ... + 25319084.

It is an arithmetic number, because the mean of its divisors is an integer number (2126747700).

Almost surely, 2^33420320340 is an apocalyptic number.

33420320340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33420320340 is an abundant number, since it is smaller than the sum of its proper divisors (68663569260).

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

33420320340 is a wasteful number, since it uses less digits than its factorization.

33420320340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50636872 (or 50636870 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 24.

Adding to 33420320340 its reverse (4302302433), we get a palindrome (37722622773).

The spelling of 33420320340 in words is "thirty-three billion, four hundred twenty million, three hundred twenty thousand, three hundred forty".