33172132 has 24 divisors (see below), whose sum is σ = 66467520. Its totient is φ = 14190240.

The previous prime is 33172127. The next prime is 33172147. The reversal of 33172132 is 23127133.

It is a happy number.

It is a super-2 number, since 2×33172132² = 2200780682850848, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 25719 + ... + 26977.

It is an arithmetic number, because the mean of its divisors is an integer number (2769480).

Almost surely, 2^33172132 is an apocalyptic number.

It is an amenable number.

33172132 is an abundant number, since it is smaller than the sum of its proper divisors (33295388).

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

33172132 is a wasteful number, since it uses less digits than its factorization.

33172132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211 (or 2209 counting only the distinct ones).

The product of its digits is 756, while the sum is 22.

The square root of 33172132 is about 5759.5253276637. The cubic root of 33172132 is about 321.3101623913.

Adding to 33172132 its reverse (23127133), we get a palindrome (56299265).

The spelling of 33172132 in words is "thirty-three million, one hundred seventy-two thousand, one hundred thirty-two".