404004444012423 has 24 divisors (see below), whose sum is σ = 589404883757040. Its totient is φ = 266640157593600.

The previous prime is 404004444012373. The next prime is 404004444012439. The reversal of 404004444012423 is 324210444400404.

It is a happy number.

404004444012423 is a `hidden beast` number, since 4 + 0 + 4 + 0 + 0 + 4 + 4 + 4 + 401 + 242 + 3 = 666.

It is not a de Polignac number, because 404004444012423 - 2⁹ = 404004444011911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404004444012823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16296186 + ... + 32765447.

It is an arithmetic number, because the mean of its divisors is an integer number (24558536823210).

Almost surely, 2^{404004444012423} is an apocalyptic number.

404004444012423 is a deficient number, since it is larger than the sum of its proper divisors (185400439744617).

404004444012423 is a wasteful number, since it uses less digits than its factorization.

404004444012423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49070799 (or 49070796 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 36.

Adding to 404004444012423 its reverse (324210444400404), we get a palindrome (728214888412827).

The spelling of 404004444012423 in words is "four hundred four trillion, four billion, four hundred forty-four million, twelve thousand, four hundred twenty-three".