231044740 has 24 divisors (see below), whose sum is σ = 501926040. Its totient is φ = 89230848.

The previous prime is 231044669. The next prime is 231044783. The reversal of 231044740 is 47440132.

231044740 is digitally balanced in base 2, 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 4 ways, for example, as 79459396 + 151585344 = 8914^2 + 12312^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198597 + ... + 199756.

It is an arithmetic number, because the mean of its divisors is an integer number (20913585).

Almost surely, 2^231044740 is an apocalyptic number.

231044740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231044740 is an abundant number, since it is smaller than the sum of its proper divisors (270881300).

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

231044740 is a wasteful number, since it uses less digits than its factorization.

231044740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398391 (or 398389 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 231044740 is about 15200.1559202529. The cubic root of 231044740 is about 613.6188540142.

Adding to 231044740 its reverse (47440132), we get a palindrome (278484872).

The spelling of 231044740 in words is "two hundred thirty-one million, forty-four thousand, seven hundred forty".