2381839 has 2 divisors, whose sum is σ = 2381840. Its totient is φ = 2381838.

The previous prime is 2381807. The next prime is 2381849. The reversal of 2381839 is 9381832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2381839 - 2⁵ = 2381807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2381849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1190919 + 1190920.

It is an arithmetic number, because the mean of its divisors is an integer number (1190920).

2^2381839 is an apocalyptic number.

2381839 is a deficient number, since it is larger than the sum of its proper divisors (1).

2381839 is an equidigital number, since it uses as much as digits as its factorization.

2381839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 2381839 is about 1543.3207702872. The cubic root of 2381839 is about 133.5480242619.

The spelling of 2381839 in words is "two million, three hundred eighty-one thousand, eight hundred thirty-nine".