421498 has 48 divisors (see below), whose sum is σ = 886464. Its totient is φ = 147840.

The previous prime is 421493. The next prime is 421501. The reversal of 421498 is 894124.

It is not an unprimeable number, because it can be changed into a prime (421493) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18315 + ... + 18337.

It is an arithmetic number, because the mean of its divisors is an integer number (18468).

2⁴²¹⁴⁹⁸ is an apocalyptic number.

421498 is an abundant number, since it is smaller than the sum of its proper divisors (464966).

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

421498 is a wasteful number, since it uses less digits than its factorization.

421498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 60 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 421498 is about 649.2287732379. The cubic root of 421498 is about 74.9776526012.

It can be divided in two parts, 421 and 498, that added together give a palindrome (919).

The spelling of 421498 in words is "four hundred twenty-one thousand, four hundred ninety-eight".