421014128 has 20 divisors (see below), whose sum is σ = 816354000. Its totient is φ = 210342144.

The previous prime is 421014119. The next prime is 421014173. The reversal of 421014128 is 821410124.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 12248 + ... + 31496.

It is an arithmetic number, because the mean of its divisors is an integer number (40817700).

Almost surely, 2^421014128 is an apocalyptic number.

It is an amenable number.

421014128 is a deficient number, since it is larger than the sum of its proper divisors (395339872).

421014128 is a wasteful number, since it uses less digits than its factorization.

421014128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20624 (or 20618 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 421014128 is about 20518.6288040892. The cubic root of 421014128 is about 749.4895062366.

The spelling of 421014128 in words is "four hundred twenty-one million, fourteen thousand, one hundred twenty-eight".