426198401 has 2 divisors, whose sum is σ = 426198402. Its totient is φ = 426198400.

The previous prime is 426198391. The next prime is 426198419. The reversal of 426198401 is 104891624.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 345216400 + 80982001 = 18580^2 + 8999^2 .

It is a cyclic number.

It is not a de Polignac number, because 426198401 - 2¹⁸ = 425936257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (426198701) 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, 213099200 + 213099201.

It is an arithmetic number, because the mean of its divisors is an integer number (213099201).

Almost surely, 2^426198401 is an apocalyptic number.

It is an amenable number.

426198401 is a deficient number, since it is larger than the sum of its proper divisors (1).

426198401 is an equidigital number, since it uses as much as digits as its factorization.

426198401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 426198401 is about 20644.5731610029. The cubic root of 426198401 is about 752.5533130000.

The spelling of 426198401 in words is "four hundred twenty-six million, one hundred ninety-eight thousand, four hundred one".