204044389 has 2 divisors, whose sum is σ = 204044390. Its totient is φ = 204044388.

The previous prime is 204044371. The next prime is 204044411. The reversal of 204044389 is 983440402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184063489 + 19980900 = 13567^2 + 4470^2 .

It is a cyclic number.

It is not a de Polignac number, because 204044389 - 2¹⁹ = 203520101 is a prime.

It is a super-2 number, since 2×204044389² = 83268225364766642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204044369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102022194 + 102022195.

It is an arithmetic number, because the mean of its divisors is an integer number (102022195).

Almost surely, 2^204044389 is an apocalyptic number.

It is an amenable number.

204044389 is a deficient number, since it is larger than the sum of its proper divisors (1).

204044389 is an equidigital number, since it uses as much as digits as its factorization.

204044389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 204044389 is about 14284.4106983802. The cubic root of 204044389 is about 588.7192259163.

The spelling of 204044389 in words is "two hundred four million, forty-four thousand, three hundred eighty-nine".