2439843493 has 4 divisors (see below), whose sum is σ = 2440138348. Its totient is φ = 2439548640.

The previous prime is 2439843487. The next prime is 2439843517. The reversal of 2439843493 is 3943489342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1519206529 + 920636964 = 38977^2 + 30342^2 .

It is a cyclic number.

It is not a de Polignac number, because 2439843493 - 2¹³ = 2439835301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2439843193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134646 + ... + 151687.

It is an arithmetic number, because the mean of its divisors is an integer number (610034587).

Almost surely, 2^2439843493 is an apocalyptic number.

It is an amenable number.

2439843493 is a deficient number, since it is larger than the sum of its proper divisors (294855).

2439843493 is an equidigital number, since it uses as much as digits as its factorization.

2439843493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294854.

The product of its digits is 2239488, while the sum is 49.

The square root of 2439843493 is about 49394.7719197083. The cubic root of 2439843493 is about 1346.2343147394.

The spelling of 2439843493 in words is "two billion, four hundred thirty-nine million, eight hundred forty-three thousand, four hundred ninety-three".