204842399 has 8 divisors (see below), whose sum is σ = 212086560. Its totient is φ = 197610336.

The previous prime is 204842357. The next prime is 204842413. The reversal of 204842399 is 993248402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204842399 - 2¹² = 204838303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204742399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44102 + ... + 48524.

It is an arithmetic number, because the mean of its divisors is an integer number (26510820).

Almost surely, 2^204842399 is an apocalyptic number.

204842399 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

204842399 is a deficient number, since it is larger than the sum of its proper divisors (7244161).

204842399 is a wasteful number, since it uses less digits than its factorization.

204842399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6049.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 204842399 is about 14312.3163394330. The cubic root of 204842399 is about 589.4857138641.

The spelling of 204842399 in words is "two hundred four million, eight hundred forty-two thousand, three hundred ninety-nine".