33400320340 has 24 divisors (see below), whose sum is σ = 70284719232. Its totient is φ = 13332690720.

The previous prime is 33400320329. The next prime is 33400320347. The reversal of 33400320340 is 4302300433.

It is a super-2 number, since 2×33400320340² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33400320347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1704856 + ... + 1724335.

It is an arithmetic number, because the mean of its divisors is an integer number (2928529968).

Almost surely, 2^33400320340 is an apocalyptic number.

It is an amenable number.

33400320340 is an abundant number, since it is smaller than the sum of its proper divisors (36884398892).

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

33400320340 is a wasteful number, since it uses less digits than its factorization.

33400320340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3429687 (or 3429685 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 22.

Adding to 33400320340 its reverse (4302300433), we get a palindrome (37702620773).

The spelling of 33400320340 in words is "thirty-three billion, four hundred million, three hundred twenty thousand, three hundred forty".