240312419 has 2 divisors, whose sum is σ = 240312420. Its totient is φ = 240312418.

The previous prime is 240312407. The next prime is 240312461. The reversal of 240312419 is 914213042.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240312419 is a prime.

It is a super-2 number, since 2×240312419² = 115500117451263122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (240312469) 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, 120156209 + 120156210.

It is an arithmetic number, because the mean of its divisors is an integer number (120156210).

Almost surely, 2^240312419 is an apocalyptic number.

240312419 is a deficient number, since it is larger than the sum of its proper divisors (1).

240312419 is an equidigital number, since it uses as much as digits as its factorization.

240312419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 240312419 is about 15502.0133853639. The cubic root of 240312419 is about 621.7160393990.

The spelling of 240312419 in words is "two hundred forty million, three hundred twelve thousand, four hundred nineteen".