8421132 has 12 divisors (see below), whose sum is σ = 19649336. Its totient is φ = 2807040.

The previous prime is 8421079. The next prime is 8421143. The reversal of 8421132 is 2311248.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×8421132² = 141830928322848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8421099 and 8421108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350869 + ... + 350892.

Almost surely, 2^8421132 is an apocalyptic number.

It is an amenable number.

8421132 is an abundant number, since it is smaller than the sum of its proper divisors (11228204).

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

8421132 is a wasteful number, since it uses less digits than its factorization.

8421132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701768 (or 701766 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 8421132 is about 2901.9186756351. The cubic root of 8421132 is about 203.4495928050.

The spelling of 8421132 in words is "eight million, four hundred twenty-one thousand, one hundred thirty-two".