234340220136 has 32 divisors (see below), whose sum is σ = 639109692000. Its totient is φ = 71012187840.

The previous prime is 234340220071. The next prime is 234340220167. The reversal of 234340220136 is 631022043432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443825911 + ... + 443826438.

It is an arithmetic number, because the mean of its divisors is an integer number (19972177875).

Almost surely, 2^234340220136 is an apocalyptic number.

It is an amenable number.

234340220136 is an abundant number, since it is smaller than the sum of its proper divisors (404769471864).

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

234340220136 is a wasteful number, since it uses less digits than its factorization.

234340220136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887652369 (or 887652365 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 234340220136 its reverse (631022043432), we get a palindrome (865362263568).

The spelling of 234340220136 in words is "two hundred thirty-four billion, three hundred forty million, two hundred twenty thousand, one hundred thirty-six".