240304019 has 2 divisors, whose sum is σ = 240304020. Its totient is φ = 240304018.

The previous prime is 240304013. The next prime is 240304037. The reversal of 240304019 is 910403042.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240304019 is a prime.

It is a super-2 number, since 2×240304019² = 115492043095104722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 240303985 and 240304003.

It is not a weakly prime, because it can be changed into another prime (240304013) 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, 120152009 + 120152010.

It is an arithmetic number, because the mean of its divisors is an integer number (120152010).

Almost surely, 2^240304019 is an apocalyptic number.

240304019 is a deficient number, since it is larger than the sum of its proper divisors (1).

240304019 is an equidigital number, since it uses as much as digits as its factorization.

240304019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 240304019 is about 15501.7424504473. The cubic root of 240304019 is about 621.7087953906.

The spelling of 240304019 in words is "two hundred forty million, three hundred four thousand, nineteen".