419963641 has 2 divisors, whose sum is σ = 419963642. Its totient is φ = 419963640.

The previous prime is 419963633. The next prime is 419963771. The reversal of 419963641 is 146369914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 280227600 + 139736041 = 16740^2 + 11821^2 .

It is a cyclic number.

It is not a de Polignac number, because 419963641 - 2³ = 419963633 is a prime.

It is not a weakly prime, because it can be changed into another prime (419963611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209981820 + 209981821.

It is an arithmetic number, because the mean of its divisors is an integer number (209981821).

Almost surely, 2^419963641 is an apocalyptic number.

It is an amenable number.

419963641 is a deficient number, since it is larger than the sum of its proper divisors (1).

419963641 is an equidigital number, since it uses as much as digits as its factorization.

419963641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 43.

The square root of 419963641 is about 20493.0144439514. The cubic root of 419963641 is about 748.8656279466.

The spelling of 419963641 in words is "four hundred nineteen million, nine hundred sixty-three thousand, six hundred forty-one".