421600312 has 48 divisors (see below), whose sum is σ = 935199000. Its totient is φ = 177613632.

The previous prime is 421600307. The next prime is 421600349. The reversal of 421600312 is 213006124.

It is a self number, because there is not a number n which added to its sum of digits gives 421600312.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 14014 + ... + 32242.

Almost surely, 2^421600312 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 421600312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (467599500).

421600312 is an abundant number, since it is smaller than the sum of its proper divisors (513598688).

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

421600312 is a wasteful number, since it uses less digits than its factorization.

421600312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18308 (or 18297 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 421600312 is about 20532.9080258983. The cubic root of 421600312 is about 749.8371865842.

Adding to 421600312 its reverse (213006124), we get a palindrome (634606436).

The spelling of 421600312 in words is "four hundred twenty-one million, six hundred thousand, three hundred twelve".