480443981 has 2 divisors, whose sum is σ = 480443982. Its totient is φ = 480443980.

The previous prime is 480443969. The next prime is 480444043. The reversal of 480443981 is 189344084.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375196900 + 105247081 = 19370^2 + 10259^2 .

It is a cyclic number.

It is not a de Polignac number, because 480443981 - 2²² = 476249677 is a prime.

It is a super-2 number, since 2×480443981² = 461652837758256722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (480443281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240221990 + 240221991.

It is an arithmetic number, because the mean of its divisors is an integer number (240221991).

Almost surely, 2^480443981 is an apocalyptic number.

It is an amenable number.

480443981 is a deficient number, since it is larger than the sum of its proper divisors (1).

480443981 is an equidigital number, since it uses as much as digits as its factorization.

480443981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 480443981 is about 21919.0323919648. The cubic root of 480443981 is about 783.2148603485.

It can be divided in two parts, 48044 and 3981, that added together give a palindrome (52025).

The spelling of 480443981 in words is "four hundred eighty million, four hundred forty-three thousand, nine hundred eighty-one".