231344032 has 24 divisors (see below), whose sum is σ = 462260736. Its totient is φ = 113944512.

The previous prime is 231344021. The next prime is 231344033. The reversal of 231344032 is 230443132.

It is a happy number.

It is a super-2 number, since 2×231344032² = 107040122284034048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231343994 and 231344012.

It is not an unprimeable number, because it can be changed into a prime (231344033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51808 + ... + 56095.

It is an arithmetic number, because the mean of its divisors is an integer number (19260864).

Almost surely, 2^231344032 is an apocalyptic number.

It is an amenable number.

231344032 is a deficient number, since it is larger than the sum of its proper divisors (230916704).

231344032 is a wasteful number, since it uses less digits than its factorization.

231344032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107980 (or 107972 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 231344032 is about 15209.9977646284. The cubic root of 231344032 is about 613.8836973391.

Adding to 231344032 its reverse (230443132), we get a palindrome (461787164).

The spelling of 231344032 in words is "two hundred thirty-one million, three hundred forty-four thousand, thirty-two".