33304412 has 12 divisors (see below), whose sum is σ = 60292680. Its totient is φ = 16077936.

The previous prime is 33304399. The next prime is 33304417. The reversal of 33304412 is 21440333.

It is a super-2 number, since 2×33304412² = 2218367717331488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33304417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143438 + ... + 143669.

It is an arithmetic number, because the mean of its divisors is an integer number (5024390).

Almost surely, 2^33304412 is an apocalyptic number.

It is an amenable number.

33304412 is a deficient number, since it is larger than the sum of its proper divisors (26988268).

33304412 is a wasteful number, since it uses less digits than its factorization.

33304412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287140 (or 287138 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 33304412 is about 5770.9974874366. The cubic root of 33304412 is about 321.7366904686.

Adding to 33304412 its reverse (21440333), we get a palindrome (54744745).

The spelling of 33304412 in words is "thirty-three million, three hundred four thousand, four hundred twelve".