33381132 has 24 divisors (see below), whose sum is σ = 82471536. Its totient is φ = 10472448.

The previous prime is 33381113. The next prime is 33381133. The reversal of 33381132 is 23118333.

It is a super-2 number, since 2×33381132² = 2228599947202848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33381133) 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, 81613 + ... + 82020.

It is an arithmetic number, because the mean of its divisors is an integer number (3436314).

Almost surely, 2^33381132 is an apocalyptic number.

It is an amenable number.

33381132 is an abundant number, since it is smaller than the sum of its proper divisors (49090404).

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

33381132 is a wasteful number, since it uses less digits than its factorization.

33381132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163657 (or 163655 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

The square root of 33381132 is about 5777.6406949550. The cubic root of 33381132 is about 321.9835517491.

Adding to 33381132 its reverse (23118333), we get a palindrome (56499465).

The spelling of 33381132 in words is "thirty-three million, three hundred eighty-one thousand, one hundred thirty-two".