421426411020 has 72 divisors (see below), whose sum is σ = 1278419045904. Its totient is φ = 112372265088.

The previous prime is 421426411013. The next prime is 421426411027. The reversal of 421426411020 is 20114624124.

421426411020 is a `hidden beast` number, since 4 + 2 + 1 + 4 + 2 + 641 + 10 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (421426411013) and next prime (421426411027).

It is not an unprimeable number, because it can be changed into a prime (421426411027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2663982 + ... + 2817738.

It is an arithmetic number, because the mean of its divisors is an integer number (17755820082).

Almost surely, 2^421426411020 is an apocalyptic number.

It is an amenable number.

421426411020 is an abundant number, since it is smaller than the sum of its proper divisors (856992634884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421426411020 is a wasteful number, since it uses less digits than its factorization.

421426411020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168999 (or 168994 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The spelling of 421426411020 in words is "four hundred twenty-one billion, four hundred twenty-six million, four hundred eleven thousand, twenty".