1913726338 has 16 divisors (see below), whose sum is σ = 2903605056. Its totient is φ = 945914320.

The previous prime is 1913726299. The next prime is 1913726357. The reversal of 1913726338 is 8336273191.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1913726294 and 1913726303.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 55020 + ... + 82792.

It is an arithmetic number, because the mean of its divisors is an integer number (181475316).

Almost surely, 2^1913726338 is an apocalyptic number.

1913726338 is a deficient number, since it is larger than the sum of its proper divisors (989878718).

1913726338 is a wasteful number, since it uses less digits than its factorization.

1913726338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28169.

The product of its digits is 163296, while the sum is 43.

The square root of 1913726338 is about 43746.1579798729. The cubic root of 1913726338 is about 1241.5377942391.

The spelling of 1913726338 in words is "one billion, nine hundred thirteen million, seven hundred twenty-six thousand, three hundred thirty-eight".