426446641 has 2 divisors, whose sum is σ = 426446642. Its totient is φ = 426446640.

The previous prime is 426446623. The next prime is 426446663. The reversal of 426446641 is 146644624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 372644416 + 53802225 = 19304^2 + 7335^2 .

It is a cyclic number.

It is not a de Polignac number, because 426446641 - 2¹⁷ = 426315569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 426446641.

It is not a weakly prime, because it can be changed into another prime (426441641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213223320 + 213223321.

It is an arithmetic number, because the mean of its divisors is an integer number (213223321).

Almost surely, 2^426446641 is an apocalyptic number.

It is an amenable number.

426446641 is a deficient number, since it is larger than the sum of its proper divisors (1).

426446641 is an equidigital number, since it uses as much as digits as its factorization.

426446641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 37.

The square root of 426446641 is about 20650.5845195723. The cubic root of 426446641 is about 752.6993933042.

It can be divided in two parts, 4264 and 46641, that added together give a palindrome (50905).

The spelling of 426446641 in words is "four hundred twenty-six million, four hundred forty-six thousand, six hundred forty-one".