421480 has 32 divisors (see below), whose sum is σ = 975240. Its totient is φ = 163840.

The previous prime is 421471. The next prime is 421483. The reversal of 421480 is 84124.

It can be written as a sum of positive squares in 4 ways, for example, as 352836 + 68644 = 594^2 + 262^2 .

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

421480 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 7 ways as a sum of consecutive naturals, for example, 1512 + ... + 1768.

2⁴²¹⁴⁸⁰ is an apocalyptic number.

421480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487620).

421480 is an abundant number, since it is smaller than the sum of its proper divisors (553760).

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

421480 is a wasteful number, since it uses less digits than its factorization.

421480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 421480 is about 649.2149104880. The cubic root of 421480 is about 74.9765852834.

The spelling of 421480 in words is "four hundred twenty-one thousand, four hundred eighty".