113840396439 has 16 divisors (see below), whose sum is σ = 189241178880. Its totient is φ = 59137868160.

The previous prime is 113840396393. The next prime is 113840396459. The reversal of 113840396439 is 934693048311.

It is not a de Polignac number, because 113840396439 - 2¹¹ = 113840394391 is a prime.

It is a super-2 number, since 2×113840396439² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113840396391 and 113840396400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113840396459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246407554 + ... + 246408015.

It is an arithmetic number, because the mean of its divisors is an integer number (11827573680).

Almost surely, 2^113840396439 is an apocalyptic number.

113840396439 is a deficient number, since it is larger than the sum of its proper divisors (75400782441).

113840396439 is a wasteful number, since it uses less digits than its factorization.

113840396439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492815590.

The product of its (nonzero) digits is 1679616, while the sum is 51.

The spelling of 113840396439 in words is "one hundred thirteen billion, eight hundred forty million, three hundred ninety-six thousand, four hundred thirty-nine".