204220799 has 4 divisors (see below), whose sum is σ = 204263040. Its totient is φ = 204178560.

The previous prime is 204220789. The next prime is 204220801. The reversal of 204220799 is 997022402.

It is a happy number.

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 204220799 - 2⁸ = 204220543 is a prime.

It is a super-2 number, since 2×204220799² = 83412269488396802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204220729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12767 + ... + 23904.

It is an arithmetic number, because the mean of its divisors is an integer number (51065760).

Almost surely, 2^204220799 is an apocalyptic number.

204220799 is a deficient number, since it is larger than the sum of its proper divisors (42241).

204220799 is an equidigital number, since it uses as much as digits as its factorization.

204220799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42240.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 204220799 is about 14290.5842777684. The cubic root of 204220799 is about 588.8888394064. Note that the first 4 decimals are identical.

The spelling of 204220799 in words is "two hundred four million, two hundred twenty thousand, seven hundred ninety-nine".