203434424 has 16 divisors (see below), whose sum is σ = 389556000. Its totient is φ = 99552832.

The previous prime is 203434421. The next prime is 203434447. The reversal of 203434424 is 424434302.

It is a junction number, because it is equal to n+sod(n) for n = 203434393 and 203434402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203434421) 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, 270149 + ... + 270900.

It is an arithmetic number, because the mean of its divisors is an integer number (24347250).

Almost surely, 2^203434424 is an apocalyptic number.

It is an amenable number.

203434424 is a deficient number, since it is larger than the sum of its proper divisors (186121576).

203434424 is a wasteful number, since it uses less digits than its factorization.

203434424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541102 (or 541098 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 203434424 is about 14263.0439948841. The cubic root of 203434424 is about 588.1320063966.

Adding to 203434424 its reverse (424434302), we get a palindrome (627868726).

The spelling of 203434424 in words is "two hundred three million, four hundred thirty-four thousand, four hundred twenty-four".