232531236 has 240 divisors, whose sum is σ = 760104576. Its totient is φ = 60466176.

The previous prime is 232531181. The next prime is 232531241. The reversal of 232531236 is 632135232.

232531236 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (6480) is a multiple of the sum of its prime factors (240).

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 79 ways as a sum of consecutive naturals, for example, 1426491 + ... + 1426653.

Almost surely, 2^232531236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 232531236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380052288).

232531236 is an abundant number, since it is smaller than the sum of its proper divisors (527573340).

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

232531236 is a wasteful number, since it uses less digits than its factorization.

232531236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 229 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 232531236 is about 15248.9749163673. The cubic root of 232531236 is about 614.9320091404.

Adding to 232531236 its reverse (632135232), we get a palindrome (864666468).

The spelling of 232531236 in words is "two hundred thirty-two million, five hundred thirty-one thousand, two hundred thirty-six".