231242344 has 16 divisors (see below), whose sum is σ = 433825920. Its totient is φ = 115555440.

The previous prime is 231242309. The next prime is 231242357. The reversal of 231242344 is 443242132.

It is a happy number.

231242344 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231242344² = 106946043317228672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8809 + ... + 23239.

It is an arithmetic number, because the mean of its divisors is an integer number (27114120).

Almost surely, 2^231242344 is an apocalyptic number.

It is an amenable number.

231242344 is a deficient number, since it is larger than the sum of its proper divisors (202583576).

231242344 is a wasteful number, since it uses less digits than its factorization.

231242344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16440 (or 16436 counting only the distinct ones).

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

The square root of 231242344 is about 15206.6545959327. The cubic root of 231242344 is about 613.7937393179.

Adding to 231242344 its reverse (443242132), we get a palindrome (674484476).

The spelling of 231242344 in words is "two hundred thirty-one million, two hundred forty-two thousand, three hundred forty-four".