231422344 has 8 divisors (see below), whose sum is σ = 433916910. Its totient is φ = 115711168.

The previous prime is 231422341. The next prime is 231422353. The reversal of 231422344 is 443224132.

It is a happy number.

231422344 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 only one way, i.e., 204776100 + 26646244 = 14310^2 + 5162^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (231422341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14463889 + ... + 14463904.

Almost surely, 2^231422344 is an apocalyptic number.

It is an amenable number.

231422344 is a deficient number, since it is larger than the sum of its proper divisors (202494566).

231422344 is a wasteful number, since it uses less digits than its factorization.

231422344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28927799 (or 28927795 counting only the distinct ones).

The product of its digits is 4608, while the sum is 25.

The square root of 231422344 is about 15212.5719061571. The cubic root of 231422344 is about 613.9529578774.

Adding to 231422344 its reverse (443224132), we get a palindrome (674646476).

The spelling of 231422344 in words is "two hundred thirty-one million, four hundred twenty-two thousand, three hundred forty-four".