204240419 has 4 divisors (see below), whose sum is σ = 204598680. Its totient is φ = 203882160.

The previous prime is 204240403. The next prime is 204240433. The reversal of 204240419 is 914042402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204240419 - 2⁴ = 204240403 is a prime.

It is a super-2 number, since 2×204240419² = 83428297506591122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204240469) 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 in 3 ways as a sum of consecutive naturals, for example, 178274 + ... + 179415.

It is an arithmetic number, because the mean of its divisors is an integer number (51149670).

Almost surely, 2^204240419 is an apocalyptic number.

204240419 is a deficient number, since it is larger than the sum of its proper divisors (358261).

204240419 is an equidigital number, since it uses as much as digits as its factorization.

204240419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358260.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 204240419 is about 14291.2707272656. The cubic root of 204240419 is about 588.9076974742.

The spelling of 204240419 in words is "two hundred four million, two hundred forty thousand, four hundred nineteen".