204442619 has 2 divisors, whose sum is σ = 204442620. Its totient is φ = 204442618.

The previous prime is 204442591. The next prime is 204442631. The reversal of 204442619 is 916244402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204442619 - 2¹⁶ = 204377083 is a prime.

It is a super-2 number, since 2×204442619² = 83593568927158322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (204442669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102221309 + 102221310.

It is an arithmetic number, because the mean of its divisors is an integer number (102221310).

Almost surely, 2^204442619 is an apocalyptic number.

204442619 is a deficient number, since it is larger than the sum of its proper divisors (1).

204442619 is an equidigital number, since it uses as much as digits as its factorization.

204442619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 204442619 is about 14298.3432257028. The cubic root of 204442619 is about 589.1019748244.

The spelling of 204442619 in words is "two hundred four million, four hundred forty-two thousand, six hundred nineteen".