421484 has 12 divisors (see below), whose sum is σ = 843024. Its totient is φ = 180624.

The previous prime is 421483. The next prime is 421493. The reversal of 421484 is 484124.

421484 is an admirable number.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (421483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7499 + ... + 7554.

It is an arithmetic number, because the mean of its divisors is an integer number (70252).

2⁴²¹⁴⁸⁴ is an apocalyptic number.

It is an amenable number.

421484 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

421484 is a wasteful number, since it uses less digits than its factorization.

421484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15064 (or 15062 counting only the distinct ones).

The product of its digits is 1024, while the sum is 23.

The square root of 421484 is about 649.2179911247. The cubic root of 421484 is about 74.9768224677.

The spelling of 421484 in words is "four hundred twenty-one thousand, four hundred eighty-four".