239440728823 has 2 divisors, whose sum is σ = 239440728824. Its totient is φ = 239440728822.

The previous prime is 239440728817. The next prime is 239440728881. The reversal of 239440728823 is 328827044932.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239440728823 is a prime.

It is a super-3 number, since 3×239440728823³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239440722823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119720364411 + 119720364412.

It is an arithmetic number, because the mean of its divisors is an integer number (119720364412).

Almost surely, 2^239440728823 is an apocalyptic number.

239440728823 is a deficient number, since it is larger than the sum of its proper divisors (1).

239440728823 is an equidigital number, since it uses as much as digits as its factorization.

239440728823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4644864, while the sum is 52.

The spelling of 239440728823 in words is "two hundred thirty-nine billion, four hundred forty million, seven hundred twenty-eight thousand, eight hundred twenty-three".