234040520052 has 72 divisors (see below), whose sum is σ = 625054903200. Its totient is φ = 73632725568.

The previous prime is 234040520039. The next prime is 234040520113. The reversal of 234040520052 is 250025040432.

It is a happy number.

234040520052 is a `hidden beast` number, since 2 + 3 + 4 + 0 + 405 + 200 + 52 = 666.

It is a super-3 number, since 3×234040520052³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 234040519998 and 234040520025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 451998 + ... + 819989.

It is an arithmetic number, because the mean of its divisors is an integer number (8681318100).

Almost surely, 2^234040520052 is an apocalyptic number.

It is an amenable number.

234040520052 is an abundant number, since it is smaller than the sum of its proper divisors (391014383148).

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

234040520052 is a wasteful number, since it uses less digits than its factorization.

234040520052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272285 (or 1272280 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 234040520052 its reverse (250025040432), we get a palindrome (484065560484).

The spelling of 234040520052 in words is "two hundred thirty-four billion, forty million, five hundred twenty thousand, fifty-two".