404544245503 has 4 divisors (see below), whose sum is σ = 404583482448. Its totient is φ = 404505008560.

The previous prime is 404544245473. The next prime is 404544245519. The reversal of 404544245503 is 305542445404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404544245503 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404544345503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19603003 + ... + 19623628.

It is an arithmetic number, because the mean of its divisors is an integer number (101145870612).

Almost surely, 2^404544245503 is an apocalyptic number.

404544245503 is a deficient number, since it is larger than the sum of its proper divisors (39236945).

404544245503 is a wasteful number, since it uses less digits than its factorization.

404544245503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39236944.

The product of its (nonzero) digits is 768000, while the sum is 40.

The spelling of 404544245503 in words is "four hundred four billion, five hundred forty-four million, two hundred forty-five thousand, five hundred three".