234340145540 has 96 divisors (see below), whose sum is σ = 530370602496. Its totient is φ = 86763156480.

The previous prime is 234340145537. The next prime is 234340145579. The reversal of 234340145540 is 45541043432.

234340145540 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-3 number, since 3×234340145540³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 234340145540.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1713905 + ... + 1845575.

It is an arithmetic number, because the mean of its divisors is an integer number (5524693776).

Almost surely, 2^234340145540 is an apocalyptic number.

234340145540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234340145540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265185301248).

234340145540 is an abundant number, since it is smaller than the sum of its proper divisors (296030456956).

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

234340145540 is a wasteful number, since it uses less digits than its factorization.

234340145540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131829 (or 131827 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 234340145540 its reverse (45541043432), we get a palindrome (279881188972).

The spelling of 234340145540 in words is "two hundred thirty-four billion, three hundred forty million, one hundred forty-five thousand, five hundred forty".