240266387 has 2 divisors, whose sum is σ = 240266388. Its totient is φ = 240266386.

The previous prime is 240266371. The next prime is 240266417. The reversal of 240266387 is 783662042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240266387 - 2⁴ = 240266371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240266387.

It is not a weakly prime, because it can be changed into another prime (240266317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120133193 + 120133194.

It is an arithmetic number, because the mean of its divisors is an integer number (120133194).

Almost surely, 2^240266387 is an apocalyptic number.

240266387 is a deficient number, since it is larger than the sum of its proper divisors (1).

240266387 is an equidigital number, since it uses as much as digits as its factorization.

240266387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 240266387 is about 15500.5286038896. The cubic root of 240266387 is about 621.6763401603.

The spelling of 240266387 in words is "two hundred forty million, two hundred sixty-six thousand, three hundred eighty-seven".