234343540 has 24 divisors (see below), whose sum is σ = 496903680. Its totient is φ = 92826528.

The previous prime is 234343537. The next prime is 234343553. The reversal of 234343540 is 45343432.

It is a junction number, because it is equal to n+sod(n) for n = 234343499 and 234343508.

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, 54820 + ... + 58939.

It is an arithmetic number, because the mean of its divisors is an integer number (20704320).

Almost surely, 2^234343540 is an apocalyptic number.

234343540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234343540 is an abundant number, since it is smaller than the sum of its proper divisors (262560140).

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

234343540 is a wasteful number, since it uses less digits than its factorization.

234343540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113871 (or 113869 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 28.

The square root of 234343540 is about 15308.2833786156. The cubic root of 234343540 is about 616.5254308480.

Adding to 234343540 its reverse (45343432), we get a palindrome (279686972).

The spelling of 234343540 in words is "two hundred thirty-four million, three hundred forty-three thousand, five hundred forty".