204435424 has 12 divisors (see below), whose sum is σ = 402482304. Its totient is φ = 102217696.

The previous prime is 204435409. The next prime is 204435437. The reversal of 204435424 is 424534402.

It is a junction number, because it is equal to n+sod(n) for n = 204435392 and 204435401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3194272 + ... + 3194335.

It is an arithmetic number, because the mean of its divisors is an integer number (33540192).

Almost surely, 2^204435424 is an apocalyptic number.

It is an amenable number.

204435424 is a deficient number, since it is larger than the sum of its proper divisors (198046880).

204435424 is an equidigital number, since it uses as much as digits as its factorization.

204435424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6388617 (or 6388609 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 204435424 is about 14298.0916209122. The cubic root of 204435424 is about 589.0950639391.

Adding to 204435424 its reverse (424534402), we get a palindrome (628969826).

The spelling of 204435424 in words is "two hundred four million, four hundred thirty-five thousand, four hundred twenty-four".