240287423 has 2 divisors, whose sum is σ = 240287424. Its totient is φ = 240287422.

The previous prime is 240287419. The next prime is 240287431. The reversal of 240287423 is 324782042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240287423 - 2² = 240287419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240287423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240277423) by changing a digit.

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 as a sum of consecutive naturals, namely, 120143711 + 120143712.

It is an arithmetic number, because the mean of its divisors is an integer number (120143712).

Almost surely, 2^240287423 is an apocalyptic number.

240287423 is a deficient number, since it is larger than the sum of its proper divisors (1).

240287423 is an equidigital number, since it uses as much as digits as its factorization.

240287423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 240287423 is about 15501.2071465418. The cubic root of 240287423 is about 621.6944828033.

The spelling of 240287423 in words is "two hundred forty million, two hundred eighty-seven thousand, four hundred twenty-three".