204430421524 has 12 divisors (see below), whose sum is σ = 408860843104. Its totient is φ = 87613037784.

The previous prime is 204430421497. The next prime is 204430421561. The reversal of 204430421524 is 425124034402.

204430421524 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

204430421524 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3650543214 + ... + 3650543269.

Almost surely, 2^204430421524 is an apocalyptic number.

It is an amenable number.

204430421524 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

204430421524 is a wasteful number, since it uses less digits than its factorization.

204430421524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7301086494 (or 7301086492 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 204430421524 its reverse (425124034402), we get a palindrome (629554455926).

The spelling of 204430421524 in words is "two hundred four billion, four hundred thirty million, four hundred twenty-one thousand, five hundred twenty-four".