421254 has 32 divisors (see below), whose sum is σ = 972000. Its totient is φ = 135072.

The previous prime is 421241. The next prime is 421273. The reversal of 421254 is 452124.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 421254.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1432 + ... + 1700.

It is an arithmetic number, because the mean of its divisors is an integer number (30375).

2⁴²¹²⁵⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486000).

421254 is an abundant number, since it is smaller than the sum of its proper divisors (550746).

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

421254 is a wasteful number, since it uses less digits than its factorization.

421254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 303 counting only the distinct ones).

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

The square root of 421254 is about 649.0408307649. The cubic root of 421254 is about 74.9631819287.

Adding to 421254 its reverse (452124), we get a palindrome (873378).

It can be divided in two parts, 42 and 1254, that added together give a 4-th power (1296 = 6⁴).

The spelling of 421254 in words is "four hundred twenty-one thousand, two hundred fifty-four".