204144442134 has 32 divisors (see below), whose sum is σ = 411774015840. Its totient is φ = 67469760000.

The previous prime is 204144442133. The next prime is 204144442171. The reversal of 204144442134 is 431244441402.

It is a junction number, because it is equal to n+sod(n) for n = 204144442095 and 204144442104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204144442133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22884 + ... + 639384.

It is an arithmetic number, because the mean of its divisors is an integer number (12867937995).

Almost surely, 2^204144442134 is an apocalyptic number.

204144442134 is an abundant number, since it is smaller than the sum of its proper divisors (207629573706).

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

204144442134 is a wasteful number, since it uses less digits than its factorization.

204144442134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616976.

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 204144442134 its reverse (431244441402), we get a palindrome (635388883536).

The spelling of 204144442134 in words is "two hundred four billion, one hundred forty-four million, four hundred forty-two thousand, one hundred thirty-four".