421488 has 30 divisors (see below), whose sum is σ = 1179984. Its totient is φ = 140448.

The previous prime is 421483. The next prime is 421493. The reversal of 421488 is 884124.

It is an interprime number because it is at equal distance from previous prime (421483) and next prime (421493).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1320 + ... + 1607.

2⁴²¹⁴⁸⁸ is an apocalyptic number.

421488 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

421488 is an abundant number, since it is smaller than the sum of its proper divisors (758496).

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

421488 is a wasteful number, since it uses less digits than its factorization.

421488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2941 (or 2932 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 421488 is about 649.2210717468. The cubic root of 421488 is about 74.9770596506.

It can be divided in two parts, 421 and 488, that added together give a palindrome (909).

The spelling of 421488 in words is "four hundred twenty-one thousand, four hundred eighty-eight".