231344444 has 12 divisors (see below), whose sum is σ = 417912768. Its totient is φ = 111940800.

The previous prime is 231344431. The next prime is 231344447. The reversal of 231344444 is 444443132.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231344447) by changing a digit.

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, 932717 + ... + 932964.

It is an arithmetic number, because the mean of its divisors is an integer number (34826064).

Almost surely, 2^231344444 is an apocalyptic number.

It is an amenable number.

231344444 is a deficient number, since it is larger than the sum of its proper divisors (186568324).

231344444 is a wasteful number, since it uses less digits than its factorization.

231344444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865716 (or 1865714 counting only the distinct ones).

The product of its digits is 18432, while the sum is 29.

The square root of 231344444 is about 15210.0113083456. The cubic root of 231344444 is about 613.8840617602.

Adding to 231344444 its reverse (444443132), we get a palindrome (675787576).

The spelling of 231344444 in words is "two hundred thirty-one million, three hundred forty-four thousand, four hundred forty-four".