33506412 has 24 divisors (see below), whose sum is σ = 80704512. Its totient is φ = 10808400.

The previous prime is 33506401. The next prime is 33506413. The reversal of 33506412 is 21460533.

It is a happy number.

It is a super-2 number, since 2×33506412² = 2245359290227488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33506413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44664 + ... + 45407.

It is an arithmetic number, because the mean of its divisors is an integer number (3362688).

Almost surely, 2^33506412 is an apocalyptic number.

It is an amenable number.

33506412 is an abundant number, since it is smaller than the sum of its proper divisors (47198100).

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

33506412 is a wasteful number, since it uses less digits than its factorization.

33506412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90109 (or 90107 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 33506412 is about 5788.4723373270. The cubic root of 33506412 is about 322.3858522773.

Adding to 33506412 its reverse (21460533), we get a palindrome (54966945).

The spelling of 33506412 in words is "thirty-three million, five hundred six thousand, four hundred twelve".