426444001 has 2 divisors, whose sum is σ = 426444002. Its totient is φ = 426444000.

The previous prime is 426443959. The next prime is 426444013. The reversal of 426444001 is 100444624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 356303376 + 70140625 = 18876^2 + 8375^2 .

It is a cyclic number.

It is not a de Polignac number, because 426444001 - 2¹⁵ = 426411233 is a prime.

It is not a weakly prime, because it can be changed into another prime (426444041) 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, 213222000 + 213222001.

It is an arithmetic number, because the mean of its divisors is an integer number (213222001).

Almost surely, 2^426444001 is an apocalyptic number.

It is an amenable number.

426444001 is a deficient number, since it is larger than the sum of its proper divisors (1).

426444001 is an equidigital number, since it uses as much as digits as its factorization.

426444001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 426444001 is about 20650.5205987646. The cubic root of 426444001 is about 752.6978400575.

Adding to 426444001 its reverse (100444624), we get a palindrome (526888625).

The spelling of 426444001 in words is "four hundred twenty-six million, four hundred forty-four thousand, one".