204144026 has 4 divisors (see below), whose sum is σ = 306216042. Its totient is φ = 102072012.

The previous prime is 204144023. The next prime is 204144053. The reversal of 204144026 is 620441402.

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., 105042001 + 99102025 = 10249^2 + 9955^2 .

It is a junction number, because it is equal to n+sod(n) for n = 204143992 and 204144010.

It is not an unprimeable number, because it can be changed into a prime (204144023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51036005 + ... + 51036008.

Almost surely, 2^204144026 is an apocalyptic number.

204144026 is a deficient number, since it is larger than the sum of its proper divisors (102072016).

204144026 is a wasteful number, since it uses less digits than its factorization.

204144026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102072015.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 204144026 is about 14287.8978859733. The cubic root of 204144026 is about 588.8150362325.

Adding to 204144026 its reverse (620441402), we get a palindrome (824585428).

The spelling of 204144026 in words is "two hundred four million, one hundred forty-four thousand, twenty-six".