240240342389 has 2 divisors, whose sum is σ = 240240342390. Its totient is φ = 240240342388.

The previous prime is 240240342379. The next prime is 240240342439. The reversal of 240240342389 is 983243042042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133027972900 + 107212369489 = 364730^2 + 327433^2 .

It is a cyclic number.

It is not a de Polignac number, because 240240342389 - 2¹² = 240240338293 is a prime.

It is a super-2 number, since 2×240240342389² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240240342379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120120171194 + 120120171195.

It is an arithmetic number, because the mean of its divisors is an integer number (120120171195).

Almost surely, 2^240240342389 is an apocalyptic number.

It is an amenable number.

240240342389 is a deficient number, since it is larger than the sum of its proper divisors (1).

240240342389 is an equidigital number, since it uses as much as digits as its factorization.

240240342389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 240240342389 in words is "two hundred forty billion, two hundred forty million, three hundred forty-two thousand, three hundred eighty-nine".