33304040 has 96 divisors (see below), whose sum is σ = 94227840. Its totient is φ = 10369920.

The previous prime is 33304027. The next prime is 33304081. The reversal of 33304040 is 4040333.

It is a super-2 number, since 2×33304040² = 2218318160643200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33389 + ... + 34371.

It is an arithmetic number, because the mean of its divisors is an integer number (981540).

Almost surely, 2^33304040 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 33304040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47113920).

33304040 is an abundant number, since it is smaller than the sum of its proper divisors (60923800).

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

33304040 is a wasteful number, since it uses less digits than its factorization.

33304040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1008 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 33304040 is about 5770.9652572165. The cubic root of 33304040 is about 321.7354925643.

Adding to 33304040 its reverse (4040333), we get a palindrome (37344373).

The spelling of 33304040 in words is "thirty-three million, three hundred four thousand, forty".