204144442 has 4 divisors (see below), whose sum is σ = 306216666. Its totient is φ = 102072220.

The previous prime is 204144433. The next prime is 204144463. The reversal of 204144442 is 244441402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 196532361 + 7612081 = 14019^2 + 2759^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51036109 + ... + 51036112.

Almost surely, 2^204144442 is an apocalyptic number.

204144442 is a deficient number, since it is larger than the sum of its proper divisors (102072224).

204144442 is a wasteful number, since it uses less digits than its factorization.

204144442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102072223.

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 204144442 is about 14287.9124437407. The cubic root of 204144442 is about 588.8154361901.

Adding to 204144442 its reverse (244441402), we get a palindrome (448585844).

The spelling of 204144442 in words is "two hundred four million, one hundred forty-four thousand, four hundred forty-two".