204420001 has 2 divisors, whose sum is σ = 204420002. Its totient is φ = 204420000.

The previous prime is 204419977. The next prime is 204420011. The reversal of 204420001 is 100024402.

204420001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104019601 + 100400400 = 10199^2 + 10020^2 .

It is a cyclic number.

It is not a de Polignac number, because 204420001 - 2⁹ = 204419489 is a prime.

It is not a weakly prime, because it can be changed into another prime (204420011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102210000 + 102210001.

It is an arithmetic number, because the mean of its divisors is an integer number (102210001).

Almost surely, 2^204420001 is an apocalyptic number.

It is an amenable number.

204420001 is a deficient number, since it is larger than the sum of its proper divisors (1).

204420001 is an equidigital number, since it uses as much as digits as its factorization.

204420001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 204420001 is about 14297.5522730291. The cubic root of 204420001 is about 589.0802494132.

Adding to 204420001 its reverse (100024402), we get a palindrome (304444403).

The spelling of 204420001 in words is "two hundred four million, four hundred twenty thousand, one".