404436360823 has 12 divisors (see below), whose sum is σ = 463873831344. Its totient is φ = 351683789600.

The previous prime is 404436360799. The next prime is 404436360827. The reversal of 404436360823 is 328063634404.

It is a de Polignac number, because none of the positive numbers 2^k-404436360823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 404436360823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404436360827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72659158 + ... + 72664723.

It is an arithmetic number, because the mean of its divisors is an integer number (38656152612).

Almost surely, 2^404436360823 is an apocalyptic number.

404436360823 is a deficient number, since it is larger than the sum of its proper divisors (59437470521).

404436360823 is a wasteful number, since it uses less digits than its factorization.

404436360823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145323926 (or 145323915 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 43.

The spelling of 404436360823 in words is "four hundred four billion, four hundred thirty-six million, three hundred sixty thousand, eight hundred twenty-three".