231024404 has 12 divisors (see below), whose sum is σ = 435392244. Its totient is φ = 106626624.

The previous prime is 231024383. The next prime is 231024421. The reversal of 231024404 is 404420132.

It can be written as a sum of positive squares in 2 ways, for example, as 48720400 + 182304004 = 6980^2 + 13502^2 .

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 3 ways as a sum of consecutive naturals, for example, 2221337 + ... + 2221440.

It is an arithmetic number, because the mean of its divisors is an integer number (36282687).

Almost surely, 2^231024404 is an apocalyptic number.

It is an amenable number.

231024404 is a deficient number, since it is larger than the sum of its proper divisors (204367840).

231024404 is a wasteful number, since it uses less digits than its factorization.

231024404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4442794 (or 4442792 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 231024404 is about 15199.4869650262. The cubic root of 231024404 is about 613.6008504028.

Adding to 231024404 its reverse (404420132), we get a palindrome (635444536).

The spelling of 231024404 in words is "two hundred thirty-one million, twenty-four thousand, four hundred four".