236808234 has 48 divisors (see below), whose sum is σ = 558302472. Its totient is φ = 72105984.

The previous prime is 236808203. The next prime is 236808239. The reversal of 236808234 is 432808632.

It can be written as a sum of positive squares in 4 ways, for example, as 174319209 + 62489025 = 13203^2 + 7905^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (236808239) 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 23 ways as a sum of consecutive naturals, for example, 17482 + ... + 27914.

Almost surely, 2^236808234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 236808234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279151236).

236808234 is an abundant number, since it is smaller than the sum of its proper divisors (321494238).

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

236808234 is a wasteful number, since it uses less digits than its factorization.

236808234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10551 (or 10548 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 236808234 is about 15388.5747878093. The cubic root of 236808234 is about 618.6793202400.

The spelling of 236808234 in words is "two hundred thirty-six million, eight hundred eight thousand, two hundred thirty-four".