236661132 has 12 divisors (see below), whose sum is σ = 552209336. Its totient is φ = 78887040.

The previous prime is 236661119. The next prime is 236661133. The reversal of 236661132 is 231166632.

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 236661132.

It is not an unprimeable number, because it can be changed into a prime (236661133) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9860869 + ... + 9860892.

Almost surely, 2^236661132 is an apocalyptic number.

It is an amenable number.

236661132 is an abundant number, since it is smaller than the sum of its proper divisors (315548204).

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

236661132 is a wasteful number, since it uses less digits than its factorization.

236661132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19721768 (or 19721766 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 236661132 is about 15383.7944604054. The cubic root of 236661132 is about 618.5511886926.

The spelling of 236661132 in words is "two hundred thirty-six million, six hundred sixty-one thousand, one hundred thirty-two".