234840520 has 16 divisors (see below), whose sum is σ = 528391260. Its totient is φ = 93936192.

The previous prime is 234840493. The next prime is 234840527. The reversal of 234840520 is 25048432.

It can be written as a sum of positive squares in 2 ways, for example, as 232196644 + 2643876 = 15238^2 + 1626^2 .

It is not an unprimeable number, because it can be changed into a prime (234840527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2935467 + ... + 2935546.

Almost surely, 2^234840520 is an apocalyptic number.

234840520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234840520 is an abundant number, since it is smaller than the sum of its proper divisors (293550740).

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

234840520 is a wasteful number, since it uses less digits than its factorization.

234840520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5871024 (or 5871020 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 234840520 is about 15324.5071698897. The cubic root of 234840520 is about 616.9609516584.

Adding to 234840520 its reverse (25048432), we get a palindrome (259888952).

The spelling of 234840520 in words is "two hundred thirty-four million, eight hundred forty thousand, five hundred twenty".