2439381 has 16 divisors (see below), whose sum is σ = 3936384. Its totient is φ = 1311744.

The previous prime is 2439379. The next prime is 2439389. The reversal of 2439381 is 1839342.

2439381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2439381 - 2¹ = 2439379 is a prime.

It is a super-2 number, since 2×2439381² = 11901159326322, which contains 22 as substring.

2439381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2439389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3060 + ... + 3773.

It is an arithmetic number, because the mean of its divisors is an integer number (246024).

2^2439381 is an apocalyptic number.

2439381 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2439381 is a deficient number, since it is larger than the sum of its proper divisors (1497003).

2439381 is a wasteful number, since it uses less digits than its factorization.

2439381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6860.

The product of its digits is 5184, while the sum is 30.

The square root of 2439381 is about 1561.8517855418. The cubic root of 2439381 is about 134.6149245992.

The spelling of 2439381 in words is "two million, four hundred thirty-nine thousand, three hundred eighty-one".