23440404306 has 16 divisors (see below), whose sum is σ = 51142700448. Its totient is φ = 7103152800.

The previous prime is 23440404199. The next prime is 23440404307. The reversal of 23440404306 is 60340404432.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23440404307) 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 7 ways as a sum of consecutive naturals, for example, 177578755 + ... + 177578886.

It is an arithmetic number, because the mean of its divisors is an integer number (3196418778).

Almost surely, 2^23440404306 is an apocalyptic number.

23440404306 is an abundant number, since it is smaller than the sum of its proper divisors (27702296142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23440404306 is a wasteful number, since it uses less digits than its factorization.

23440404306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355157657.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 23440404306 its reverse (60340404432), we get a palindrome (83780808738).

The spelling of 23440404306 in words is "twenty-three billion, four hundred forty million, four hundred four thousand, three hundred six".