231334040 has 32 divisors (see below), whose sum is σ = 594859680. Its totient is φ = 79314432.

The previous prime is 231334003. The next prime is 231334087. The reversal of 231334040 is 40433132.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 412817 + ... + 413376.

It is an arithmetic number, because the mean of its divisors is an integer number (18589365).

Almost surely, 2^231334040 is an apocalyptic number.

231334040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231334040 is an abundant number, since it is smaller than the sum of its proper divisors (363525640).

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

231334040 is a wasteful number, since it uses less digits than its factorization.

231334040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826211 (or 826207 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 231334040 is about 15209.6692929202. The cubic root of 231334040 is about 613.8748591106.

Adding to 231334040 its reverse (40433132), we get a palindrome (271767172).

The spelling of 231334040 in words is "two hundred thirty-one million, three hundred thirty-four thousand, forty".