2938402038393 has 12 divisors (see below), whose sum is σ = 4494026647188. Its totient is φ = 1843703239680.

The previous prime is 2938402038323. The next prime is 2938402038401. The reversal of 2938402038393 is 3938302048392.

2938402038393 is a `hidden beast` number, since 2 + 9 + 3 + 8 + 40 + 203 + 8 + 393 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2529636173289 + 408765865104 = 1590483^2 + 639348^2 .

It is not a de Polignac number, because 2938402038393 - 2¹⁷ = 2938401907321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2938402038323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9602620888 + ... + 9602621193.

It is an arithmetic number, because the mean of its divisors is an integer number (374502220599).

Almost surely, 2^{2938402038393} is an apocalyptic number.

It is an amenable number.

2938402038393 is a deficient number, since it is larger than the sum of its proper divisors (1555624608795).

2938402038393 is a wasteful number, since it uses less digits than its factorization.

2938402038393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19205242104 (or 19205242101 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 54.

Subtracting 2938402038393 from its reverse (3938302048392), we obtain a palindrome (999900009999).

The spelling of 2938402038393 in words is "two trillion, nine hundred thirty-eight billion, four hundred two million, thirty-eight thousand, three hundred ninety-three".