33072132 has 12 divisors (see below), whose sum is σ = 77168336. Its totient is φ = 11024040.

The previous prime is 33072121. The next prime is 33072181. The reversal of 33072132 is 23127033.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 33072099 and 33072108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1377994 + ... + 1378017.

Almost surely, 2^33072132 is an apocalyptic number.

It is an amenable number.

33072132 is an abundant number, since it is smaller than the sum of its proper divisors (44096204).

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

33072132 is a wasteful number, since it uses less digits than its factorization.

33072132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756018 (or 2756016 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 33072132 is about 5750.8375042249. The cubic root of 33072132 is about 320.9869658240.

Adding to 33072132 its reverse (23127033), we get a palindrome (56199165).

The spelling of 33072132 in words is "thirty-three million, seventy-two thousand, one hundred thirty-two".