204240424 has 32 divisors (see below), whose sum is σ = 407988000. Its totient is φ = 95573952.

The previous prime is 204240403. The next prime is 204240433. The reversal of 204240424 is 424042402.

It is a junction number, because it is equal to n+sod(n) for n = 204240395 and 204240404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4522 + ... + 20710.

It is an arithmetic number, because the mean of its divisors is an integer number (12749625).

Almost surely, 2^204240424 is an apocalyptic number.

It is an amenable number.

204240424 is a deficient number, since it is larger than the sum of its proper divisors (203747576).

204240424 is a wasteful number, since it uses less digits than its factorization.

204240424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16297 (or 16293 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 204240424 is about 14291.2709021976. The cubic root of 204240424 is about 588.9077022799.

Adding to 204240424 its reverse (424042402), we get a palindrome (628282826).

The spelling of 204240424 in words is "two hundred four million, two hundred forty thousand, four hundred twenty-four".