240342402423 has 4 divisors (see below), whose sum is σ = 320456536568. Its totient is φ = 160228268280.

The previous prime is 240342402379. The next prime is 240342402427. The reversal of 240342402423 is 324204243042.

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

It is not a de Polignac number, because 240342402423 - 2⁹ = 240342401911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240342402427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40057067068 + ... + 40057067073.

It is an arithmetic number, because the mean of its divisors is an integer number (80114134142).

Almost surely, 2^240342402423 is an apocalyptic number.

240342402423 is a deficient number, since it is larger than the sum of its proper divisors (80114134145).

240342402423 is an equidigital number, since it uses as much as digits as its factorization.

240342402423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80114134144.

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 240342402423 its reverse (324204243042), we get a palindrome (564546645465).

The spelling of 240342402423 in words is "two hundred forty billion, three hundred forty-two million, four hundred two thousand, four hundred twenty-three".