240856379 has 2 divisors, whose sum is σ = 240856380. Its totient is φ = 240856378.

The previous prime is 240856367. The next prime is 240856381. The reversal of 240856379 is 973658042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240856379 - 2¹⁶ = 240790843 is a prime.

Together with 240856381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (240826379) 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, 120428189 + 120428190.

It is an arithmetic number, because the mean of its divisors is an integer number (120428190).

Almost surely, 2^240856379 is an apocalyptic number.

240856379 is a deficient number, since it is larger than the sum of its proper divisors (1).

240856379 is an equidigital number, since it uses as much as digits as its factorization.

240856379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 240856379 is about 15519.5482859521. The cubic root of 240856379 is about 622.1847817265.

The spelling of 240856379 in words is "two hundred forty million, eight hundred fifty-six thousand, three hundred seventy-nine".