231400324 has 12 divisors (see below), whose sum is σ = 406871248. Its totient is φ = 115151400.

The previous prime is 231400321. The next prime is 231400349. The reversal of 231400324 is 423004132.

231400324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231400324² = 107092219894609952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231400321) 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, 136242 + ... + 137929.

Almost surely, 2^231400324 is an apocalyptic number.

It is an amenable number.

231400324 is a deficient number, since it is larger than the sum of its proper divisors (175470924).

231400324 is a wasteful number, since it uses less digits than its factorization.

231400324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274386 (or 274384 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 231400324 is about 15211.8481454424. The cubic root of 231400324 is about 613.9334845734.

Adding to 231400324 its reverse (423004132), we get a palindrome (654404456).

The spelling of 231400324 in words is "two hundred thirty-one million, four hundred thousand, three hundred twenty-four".