231343734 has 16 divisors (see below), whose sum is σ = 487039680. Its totient is φ = 73055880.

The previous prime is 231343709. The next prime is 231343751. The reversal of 231343734 is 437343132.

231343734 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 2×231343734² = 107039846522125512, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014552 + ... + 1014779.

It is an arithmetic number, because the mean of its divisors is an integer number (30439980).

Almost surely, 2^231343734 is an apocalyptic number.

231343734 is an abundant number, since it is smaller than the sum of its proper divisors (255695946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231343734 is a wasteful number, since it uses less digits than its factorization.

231343734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029355.

The product of its digits is 18144, while the sum is 30.

The square root of 231343734 is about 15209.9879684371. The cubic root of 231343734 is about 613.8834337527.

Adding to 231343734 its reverse (437343132), we get a palindrome (668686866).

The spelling of 231343734 in words is "two hundred thirty-one million, three hundred forty-three thousand, seven hundred thirty-four".