426568481 has 2 divisors, whose sum is σ = 426568482. Its totient is φ = 426568480.

The previous prime is 426568477. The next prime is 426568501. The reversal of 426568481 is 184865624.

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., 346555456 + 80013025 = 18616^2 + 8945^2 .

It is a cyclic number.

It is not a de Polignac number, because 426568481 - 2² = 426568477 is a prime.

It is a super-2 number, since 2×426568481² = 363921337965294722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (426568421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213284240 + 213284241.

It is an arithmetic number, because the mean of its divisors is an integer number (213284241).

Almost surely, 2^426568481 is an apocalyptic number.

It is an amenable number.

426568481 is a deficient number, since it is larger than the sum of its proper divisors (1).

426568481 is an equidigital number, since it uses as much as digits as its factorization.

426568481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 368640, while the sum is 44.

The square root of 426568481 is about 20653.5343464502. The cubic root of 426568481 is about 752.7710710184.

The spelling of 426568481 in words is "four hundred twenty-six million, five hundred sixty-eight thousand, four hundred eighty-one".