456240839 has 2 divisors, whose sum is σ = 456240840. Its totient is φ = 456240838.

The previous prime is 456240823. The next prime is 456240859. The reversal of 456240839 is 938042654.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 456240839 - 2⁴ = 456240823 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 456240796 and 456240805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (456240859) 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, 228120419 + 228120420.

It is an arithmetic number, because the mean of its divisors is an integer number (228120420).

Almost surely, 2^456240839 is an apocalyptic number.

456240839 is a deficient number, since it is larger than the sum of its proper divisors (1).

456240839 is an equidigital number, since it uses as much as digits as its factorization.

456240839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 456240839 is about 21359.7949194275. The cubic root of 456240839 is about 769.8357095938.

The spelling of 456240839 in words is "four hundred fifty-six million, two hundred forty thousand, eight hundred thirty-nine".