421636676 has 12 divisors (see below), whose sum is σ = 776699280. Its totient is φ = 199722600.

The previous prime is 421636651. The next prime is 421636679. The reversal of 421636676 is 676636124.

It is not an unprimeable number, because it can be changed into a prime (421636679) 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 in 3 ways as a sum of consecutive naturals, for example, 2773850 + ... + 2774001.

It is an arithmetic number, because the mean of its divisors is an integer number (64724940).

Almost surely, 2^421636676 is an apocalyptic number.

It is an amenable number.

421636676 is a deficient number, since it is larger than the sum of its proper divisors (355062604).

421636676 is a wasteful number, since it uses less digits than its factorization.

421636676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5547874 (or 5547872 counting only the distinct ones).

The product of its digits is 217728, while the sum is 41.

The square root of 421636676 is about 20533.7935121594. The cubic root of 421636676 is about 749.8587443604.

The spelling of 421636676 in words is "four hundred twenty-one million, six hundred thirty-six thousand, six hundred seventy-six".