420843968 has 14 divisors (see below), whose sum is σ = 835112376. Its totient is φ = 210421952.

The previous prime is 420843961. The next prime is 420843971. The reversal of 420843968 is 869348024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420843961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3287780 + ... + 3287907.

It is an arithmetic number, because the mean of its divisors is an integer number (59650884).

Almost surely, 2^420843968 is an apocalyptic number.

It is an amenable number.

420843968 is a deficient number, since it is larger than the sum of its proper divisors (414268408).

420843968 is an equidigital number, since it uses as much as digits as its factorization.

420843968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6575699 (or 6575689 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 420843968 is about 20514.4819091295. The cubic root of 420843968 is about 749.3885196653.

The spelling of 420843968 in words is "four hundred twenty million, eight hundred forty-three thousand, nine hundred sixty-eight".