23440234420433 has 16 divisors (see below), whose sum is σ = 25000731343440. Its totient is φ = 21899928324096.

The previous prime is 23440234420423. The next prime is 23440234420553. The reversal of 23440234420433 is 33402443204432.

It can be written as a sum of positive squares in 8 ways, for example, as 2937151571344 + 20503082849089 = 1713812^2 + 4528033^2 .

It is not a de Polignac number, because 23440234420433 - 2¹⁰ = 23440234419409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23440234420423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229096835 + ... + 229199127.

It is an arithmetic number, because the mean of its divisors is an integer number (1562545708965).

Almost surely, 2^{23440234420433} is an apocalyptic number.

It is an amenable number.

23440234420433 is a deficient number, since it is larger than the sum of its proper divisors (1560496923007).

23440234420433 is a wasteful number, since it uses less digits than its factorization.

23440234420433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200836.

The product of its (nonzero) digits is 663552, while the sum is 38.

Adding to 23440234420433 its reverse (33402443204432), we get a palindrome (56842677624865).

The spelling of 23440234420433 in words is "twenty-three trillion, four hundred forty billion, two hundred thirty-four million, four hundred twenty thousand, four hundred thirty-three".