33323303440 has 160 divisors (see below), whose sum is σ = 97830167040. Its totient is φ = 10285473792.

The previous prime is 33323303347. The next prime is 33323303471. The reversal of 33323303440 is 4430332333.

It is a super-2 number, since 2×33323303440² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 33323303399 and 33323303408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142866 + ... + 295054.

It is an arithmetic number, because the mean of its divisors is an integer number (611438544).

Almost surely, 2^33323303440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33323303440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48915083520).

33323303440 is an abundant number, since it is smaller than the sum of its proper divisors (64506863600).

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

33323303440 is a wasteful number, since it uses less digits than its factorization.

33323303440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152249 (or 152243 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 28.

Adding to 33323303440 its reverse (4430332333), we get a palindrome (37753635773).

The spelling of 33323303440 in words is "thirty-three billion, three hundred twenty-three million, three hundred three thousand, four hundred forty".