204435402424 has 16 divisors (see below), whose sum is σ = 418163323320. Its totient is φ = 92925182880.

The previous prime is 204435402343. The next prime is 204435402427. The reversal of 204435402424 is 424204534402.

It is a self number, because there is not a number n which added to its sum of digits gives 204435402424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204435402427) 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, 1161564699 + ... + 1161564874.

Almost surely, 2^204435402424 is an apocalyptic number.

It is an amenable number.

204435402424 is an abundant number, since it is smaller than the sum of its proper divisors (213727920896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204435402424 is a wasteful number, since it uses less digits than its factorization.

204435402424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323129590 (or 2323129586 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 34.

Adding to 204435402424 its reverse (424204534402), we get a palindrome (628639936826).

The spelling of 204435402424 in words is "two hundred four billion, four hundred thirty-five million, four hundred two thousand, four hundred twenty-four".