204464399 has 2 divisors, whose sum is σ = 204464400. Its totient is φ = 204464398.

The previous prime is 204464383. The next prime is 204464431. The reversal of 204464399 is 993464402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204464399 - 2⁴ = 204464383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204464329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102232199 + 102232200.

It is an arithmetic number, because the mean of its divisors is an integer number (102232200).

Almost surely, 2^204464399 is an apocalyptic number.

204464399 is a deficient number, since it is larger than the sum of its proper divisors (1).

204464399 is an equidigital number, since it uses as much as digits as its factorization.

204464399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 204464399 is about 14299.1048321215. The cubic root of 204464399 is about 589.1228937917.

The spelling of 204464399 in words is "two hundred four million, four hundred sixty-four thousand, three hundred ninety-nine".