203424404 has 12 divisors (see below), whose sum is σ = 356176128. Its totient is φ = 101659800.

The previous prime is 203424383. The next prime is 203424407. The reversal of 203424404 is 404424302.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 203424404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203424407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3602 + ... + 20489.

It is an arithmetic number, because the mean of its divisors is an integer number (29681344).

Almost surely, 2^203424404 is an apocalyptic number.

It is an amenable number.

203424404 is a deficient number, since it is larger than the sum of its proper divisors (152751724).

203424404 is a wasteful number, since it uses less digits than its factorization.

203424404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26206 (or 26204 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 203424404 is about 14262.6927331412. The cubic root of 203424404 is about 588.1223502474.

Adding to 203424404 its reverse (404424302), we get a palindrome (607848706).

The spelling of 203424404 in words is "two hundred three million, four hundred twenty-four thousand, four hundred four".