240864739 has 2 divisors, whose sum is σ = 240864740. Its totient is φ = 240864738.

The previous prime is 240864713. The next prime is 240864773. The reversal of 240864739 is 937468042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240864739 - 2¹¹ = 240862691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 240864695 and 240864704.

It is not a weakly prime, because it can be changed into another prime (240864839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120432369 + 120432370.

It is an arithmetic number, because the mean of its divisors is an integer number (120432370).

Almost surely, 2^240864739 is an apocalyptic number.

240864739 is a deficient number, since it is larger than the sum of its proper divisors (1).

240864739 is an equidigital number, since it uses as much as digits as its factorization.

240864739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 240864739 is about 15519.8176213511. The cubic root of 240864739 is about 622.1919802136.

The spelling of 240864739 in words is "two hundred forty million, eight hundred sixty-four thousand, seven hundred thirty-nine".