233631140 has 12 divisors (see below), whose sum is σ = 490625436. Its totient is φ = 93452448.

The previous prime is 233631133. The next prime is 233631143. The reversal of 233631140 is 41136332.

233631140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 62125924 + 171505216 = 7882^2 + 13096^2 .

It is not an unprimeable number, because it can be changed into a prime (233631143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5840759 + ... + 5840798.

It is an arithmetic number, because the mean of its divisors is an integer number (40885453).

Almost surely, 2^233631140 is an apocalyptic number.

233631140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233631140 is an abundant number, since it is smaller than the sum of its proper divisors (256994296).

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

233631140 is a wasteful number, since it uses less digits than its factorization.

233631140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11681566 (or 11681564 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 233631140 is about 15284.9972194960. The cubic root of 233631140 is about 615.9000547637.

Adding to 233631140 its reverse (41136332), we get a palindrome (274767472).

The spelling of 233631140 in words is "two hundred thirty-three million, six hundred thirty-one thousand, one hundred forty".