404163543 has 32 divisors (see below), whose sum is σ = 636940800. Its totient is φ = 223136640.

The previous prime is 404163541. The next prime is 404163569. The reversal of 404163543 is 345361404.

It is not a de Polignac number, because 404163543 - 2¹ = 404163541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 404163543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404163541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114028 + ... + 117518.

It is an arithmetic number, because the mean of its divisors is an integer number (19904400).

Almost surely, 2^404163543 is an apocalyptic number.

404163543 is a deficient number, since it is larger than the sum of its proper divisors (232777257).

404163543 is a wasteful number, since it uses less digits than its factorization.

404163543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3687.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 404163543 is about 20103.8191147851. The cubic root of 404163543 is about 739.3539180625.

The spelling of 404163543 in words is "four hundred four million, one hundred sixty-three thousand, five hundred forty-three".