421896 has 16 divisors (see below), whose sum is σ = 1054800. Its totient is φ = 140624.

The previous prime is 421891. The next prime is 421907. The reversal of 421896 is 698124.

421896 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (421891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8766 + ... + 8813.

It is an arithmetic number, because the mean of its divisors is an integer number (65925).

2⁴²¹⁸⁹⁶ is an apocalyptic number.

It is an amenable number.

421896 is an abundant number, since it is smaller than the sum of its proper divisors (632904).

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

421896 is a wasteful number, since it uses less digits than its factorization.

421896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17588 (or 17584 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 421896 is about 649.5352184447. The cubic root of 421896 is about 75.0012444238.

It can be divided in two parts, 42189 and 6, that added together give a triangular number (42195 = T₂₉₀).

The spelling of 421896 in words is "four hundred twenty-one thousand, eight hundred ninety-six".