2430839 has 2 divisors, whose sum is σ = 2430840. Its totient is φ = 2430838.

The previous prime is 2430829. The next prime is 2430851. The reversal of 2430839 is 9380342.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2430839 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2430829) 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, 1215419 + 1215420.

It is an arithmetic number, because the mean of its divisors is an integer number (1215420).

2^2430839 is an apocalyptic number.

2430839 is a deficient number, since it is larger than the sum of its proper divisors (1).

2430839 is an equidigital number, since it uses as much as digits as its factorization.

2430839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 2430839 is about 1559.1148129628. The cubic root of 2430839 is about 134.4576134500.

The spelling of 2430839 in words is "two million, four hundred thirty thousand, eight hundred thirty-nine".