421316 has 24 divisors (see below), whose sum is σ = 865536. Its totient is φ = 175680.

The previous prime is 421313. The next prime is 421331. The reversal of 421316 is 613124.

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 421294 and 421303.

It is not an unprimeable number, because it can be changed into a prime (421313) 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, 965 + ... + 1331.

It is an arithmetic number, because the mean of its divisors is an integer number (36064).

2⁴²¹³¹⁶ 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 421316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432768).

421316 is an abundant number, since it is smaller than the sum of its proper divisors (444220).

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

421316 is a wasteful number, since it uses less digits than its factorization.

421316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 417 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 421316 is about 649.0885917962. The cubic root of 421316 is about 74.9668594323.

It can be divided in two parts, 421 and 316, that added together give a palindrome (737).

The spelling of 421316 in words is "four hundred twenty-one thousand, three hundred sixteen".