2349938821 has 12 divisors (see below), whose sum is σ = 2432676132. Its totient is φ = 2269760000.

The previous prime is 2349938809. The next prime is 2349938827. The reversal of 2349938821 is 1288399432.

It can be written as a sum of positive squares in 6 ways, for example, as 299117025 + 2050821796 = 17295^2 + 45286^2 .

It is not a de Polignac number, because 2349938821 - 2¹¹ = 2349936773 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 (2349938827) 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 11 ways as a sum of consecutive naturals, for example, 162861 + ... + 176701.

It is an arithmetic number, because the mean of its divisors is an integer number (202723011).

Almost surely, 2^2349938821 is an apocalyptic number.

It is an amenable number.

2349938821 is a deficient number, since it is larger than the sum of its proper divisors (82737311).

2349938821 is a wasteful number, since it uses less digits than its factorization.

2349938821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14024 (or 13983 counting only the distinct ones).

The product of its digits is 746496, while the sum is 49.

The square root of 2349938821 is about 48476.1675568521. The cubic root of 2349938821 is about 1329.4913578781.

The spelling of 2349938821 in words is "two billion, three hundred forty-nine million, nine hundred thirty-eight thousand, eight hundred twenty-one".