421310032 has 80 divisors (see below), whose sum is σ = 975562560. Its totient is φ = 173721600.

The previous prime is 421310027. The next prime is 421310033. The reversal of 421310032 is 230013124.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 421309988 and 421310015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421310033) by changing a digit.

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, 133432 + ... + 136552.

It is an arithmetic number, because the mean of its divisors is an integer number (12194532).

Almost surely, 2^421310032 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 421310032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487781280).

421310032 is an abundant number, since it is smaller than the sum of its proper divisors (554252528).

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

421310032 is a wasteful number, since it uses less digits than its factorization.

421310032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3212 (or 3206 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 421310032 is about 20525.8381558464. The cubic root of 421310032 is about 749.6650545858.

Adding to 421310032 its reverse (230013124), we get a palindrome (651323156).

The spelling of 421310032 in words is "four hundred twenty-one million, three hundred ten thousand, thirty-two".