421596 has 54 divisors (see below), whose sum is σ = 1244880. Its totient is φ = 119952.

The previous prime is 421559. The next prime is 421607. The reversal of 421596 is 695124.

It is a congruent number.

It is an unprimeable number.

421596 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1645 + ... + 1883.

2⁴²¹⁵⁹⁶ 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 421596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622440).

421596 is an abundant number, since it is smaller than the sum of its proper divisors (823284).

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

421596 is a wasteful number, since it uses less digits than its factorization.

421596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 251 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 421596 is about 649.3042430171. The cubic root of 421596 is about 74.9834630206.

The spelling of 421596 in words is "four hundred twenty-one thousand, five hundred ninety-six".