421088 has 12 divisors (see below), whose sum is σ = 829080. Its totient is φ = 210528.

The previous prime is 421081. The next prime is 421093. The reversal of 421088 is 880124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421081) by changing a digit.

421088 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 as a sum of consecutive naturals, namely, 6548 + ... + 6611.

It is an arithmetic number, because the mean of its divisors is an integer number (69090).

2⁴²¹⁰⁸⁸ is an apocalyptic number.

It is an amenable number.

421088 is a deficient number, since it is larger than the sum of its proper divisors (407992).

421088 is a wasteful number, since it uses less digits than its factorization.

421088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13169 (or 13161 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 421088 is about 648.9129371495. The cubic root of 421088 is about 74.9533339327.

The spelling of 421088 in words is "four hundred twenty-one thousand, eighty-eight".