20298401 has 2 divisors, whose sum is σ = 20298402. Its totient is φ = 20298400.

The previous prime is 20298379. The next prime is 20298413. The reversal of 20298401 is 10489202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19140625 + 1157776 = 4375^2 + 1076^2 .

It is a cyclic number.

It is not a de Polignac number, because 20298401 - 2⁶ = 20298337 is a prime.

It is not a weakly prime, because it can be changed into another prime (20298001) 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 as a sum of consecutive naturals, namely, 10149200 + 10149201.

It is an arithmetic number, because the mean of its divisors is an integer number (10149201).

Almost surely, 2^20298401 is an apocalyptic number.

It is an amenable number.

20298401 is a deficient number, since it is larger than the sum of its proper divisors (1).

20298401 is an equidigital number, since it uses as much as digits as its factorization.

20298401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 20298401 is about 4505.3746792026. The cubic root of 20298401 is about 272.7850777506.

The spelling of 20298401 in words is "twenty million, two hundred ninety-eight thousand, four hundred one".