23440047405 has 16 divisors (see below), whose sum is σ = 37742959104. Its totient is φ = 12421730880.

The previous prime is 23440047403. The next prime is 23440047409. The reversal of 23440047405 is 50474004432.

It is not a de Polignac number, because 23440047405 - 2¹ = 23440047403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23440047403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4974301 + ... + 4979010.

It is an arithmetic number, because the mean of its divisors is an integer number (2358934944).

Almost surely, 2^23440047405 is an apocalyptic number.

It is an amenable number.

23440047405 is a deficient number, since it is larger than the sum of its proper divisors (14302911699).

23440047405 is a wasteful number, since it uses less digits than its factorization.

23440047405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9953476.

The product of its (nonzero) digits is 53760, while the sum is 33.

The spelling of 23440047405 in words is "twenty-three billion, four hundred forty million, forty-seven thousand, four hundred five".