421013432 has 64 divisors (see below), whose sum is σ = 966168000. Its totient is φ = 167878656.

The previous prime is 421013429. The next prime is 421013441. The reversal of 421013432 is 234310124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82244 + ... + 87212.

It is an arithmetic number, because the mean of its divisors is an integer number (15096375).

Almost surely, 2^421013432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421013432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483084000).

421013432 is an abundant number, since it is smaller than the sum of its proper divisors (545154568).

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

421013432 is a wasteful number, since it uses less digits than its factorization.

421013432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5088 (or 5084 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 421013432 is about 20518.6118438846. The cubic root of 421013432 is about 749.4890932299.

Adding to 421013432 its reverse (234310124), we get a palindrome (655323556).

The spelling of 421013432 in words is "four hundred twenty-one million, thirteen thousand, four hundred thirty-two".