20204299 has 2 divisors, whose sum is σ = 20204300. Its totient is φ = 20204298.

The previous prime is 20204297. The next prime is 20204311. The reversal of 20204299 is 99240202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20204299 - 2¹ = 20204297 is a prime.

Together with 20204297, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20204293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10102149 + 10102150.

It is an arithmetic number, because the mean of its divisors is an integer number (10102150).

Almost surely, 2^20204299 is an apocalyptic number.

20204299 is a deficient number, since it is larger than the sum of its proper divisors (1).

20204299 is an equidigital number, since it uses as much as digits as its factorization.

20204299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 20204299 is about 4494.9192428786. The cubic root of 20204299 is about 272.3628870010.

It can be divided in two parts, 20204 and 299, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 20204299 in words is "twenty million, two hundred four thousand, two hundred ninety-nine".