204021244132434 has 24 divisors (see below), whose sum is σ = 448101454010652. Its totient is φ = 67075477522560.

The previous prime is 204021244132403. The next prime is 204021244132439. The reversal of 204021244132434 is 434231442120402.

204021244132434 is a `hidden beast` number, since 2 + 0 + 4 + 0 + 212 + 4 + 4 + 1 + 3 + 2 + 434 = 666.

204021244132434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 182619952553025 + 21401291579409 = 13513695^2 + 4626153^2 .

It is not an unprimeable number, because it can be changed into a prime (204021244132439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77633653227 + ... + 77633655854.

Almost surely, 2^{204021244132434} is an apocalyptic number.

204021244132434 is an abundant number, since it is smaller than the sum of its proper divisors (244080209878218).

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

204021244132434 is a wasteful number, since it uses less digits than its factorization.

204021244132434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155267309162 (or 155267309159 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 204021244132434 its reverse (434231442120402), we get a palindrome (638252686252836).

The spelling of 204021244132434 in words is "two hundred four trillion, twenty-one billion, two hundred forty-four million, one hundred thirty-two thousand, four hundred thirty-four".