421452 has 36 divisors (see below), whose sum is σ = 1113840. Its totient is φ = 134112.

The previous prime is 421433. The next prime is 421453. The reversal of 421452 is 254124.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (421453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 574 + ... + 1082.

It is an arithmetic number, because the mean of its divisors is an integer number (30940).

2⁴²¹⁴⁵² 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 421452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (556920).

421452 is an abundant number, since it is smaller than the sum of its proper divisors (692388).

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

421452 is a wasteful number, since it uses less digits than its factorization.

421452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 537 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 421452 is about 649.1933456221. The cubic root of 421452 is about 74.9749249508.

Adding to 421452 its reverse (254124), we get a palindrome (675576).

The spelling of 421452 in words is "four hundred twenty-one thousand, four hundred fifty-two".