404203043 has 4 divisors (see below), whose sum is σ = 404369880. Its totient is φ = 404036208.

The previous prime is 404203013. The next prime is 404203049. The reversal of 404203043 is 340302404.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 404203043 - 2²⁰ = 403154467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404203049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79730 + ... + 84647.

It is an arithmetic number, because the mean of its divisors is an integer number (101092470).

Almost surely, 2^404203043 is an apocalyptic number.

404203043 is a deficient number, since it is larger than the sum of its proper divisors (166837).

404203043 is a wasteful number, since it uses less digits than its factorization.

404203043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166836.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 404203043 is about 20104.8014911861. The cubic root of 404203043 is about 739.3780036329.

Adding to 404203043 its reverse (340302404), we get a palindrome (744505447).

The spelling of 404203043 in words is "four hundred four million, two hundred three thousand, forty-three".