204989441 has 4 divisors (see below), whose sum is σ = 205806384. Its totient is φ = 204172500.

The previous prime is 204989431. The next prime is 204989479. The reversal of 204989441 is 144989402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 204989441 - 2⁶ = 204989377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204989431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408095 + ... + 408596.

It is an arithmetic number, because the mean of its divisors is an integer number (51451596).

Almost surely, 2^204989441 is an apocalyptic number.

It is an amenable number.

204989441 is a deficient number, since it is larger than the sum of its proper divisors (816943).

204989441 is an equidigital number, since it uses as much as digits as its factorization.

204989441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816942.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 204989441 is about 14317.4523222534. The cubic root of 204989441 is about 589.6267302858.

The spelling of 204989441 in words is "two hundred four million, nine hundred eighty-nine thousand, four hundred forty-one".