421421132 has 24 divisors (see below), whose sum is σ = 809040960. Its totient is φ = 190481360.

The previous prime is 421421131. The next prime is 421421137. The reversal of 421421132 is 231124124.

It is a super-2 number, since 2×421421132² = 355191540992322848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421421131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18878 + ... + 34629.

It is an arithmetic number, because the mean of its divisors is an integer number (33710040).

Almost surely, 2^421421132 is an apocalyptic number.

It is an amenable number.

421421132 is a deficient number, since it is larger than the sum of its proper divisors (387619828).

421421132 is a wasteful number, since it uses less digits than its factorization.

421421132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53701 (or 53699 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 421421132 is about 20528.5443224794. The cubic root of 421421132 is about 749.7309446757.

Adding to 421421132 its reverse (231124124), we get a palindrome (652545256).

The spelling of 421421132 in words is "four hundred twenty-one million, four hundred twenty-one thousand, one hundred thirty-two".