240129044843 has 4 divisors (see below), whose sum is σ = 241133769120. Its totient is φ = 239124320568.

The previous prime is 240129044777. The next prime is 240129044863. The reversal of 240129044843 is 348440921042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240129044843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240129044843.

It is not an unprimeable number, because it can be changed into a prime (240129044863) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 502361780 + ... + 502362257.

It is an arithmetic number, because the mean of its divisors is an integer number (60283442280).

Almost surely, 2^240129044843 is an apocalyptic number.

240129044843 is a deficient number, since it is larger than the sum of its proper divisors (1004724277).

240129044843 is a wasteful number, since it uses less digits than its factorization.

240129044843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004724276.

The product of its (nonzero) digits is 221184, while the sum is 41.

Adding to 240129044843 its reverse (348440921042), we get a palindrome (588569965885).

The spelling of 240129044843 in words is "two hundred forty billion, one hundred twenty-nine million, forty-four thousand, eight hundred forty-three".