421589124 has 120 divisors (see below), whose sum is σ = 1244073600. Its totient is φ = 123318720.

The previous prime is 421589123. The next prime is 421589159. The reversal of 421589124 is 421985124.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (421589123) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 101317 + ... + 105395.

It is an arithmetic number, because the mean of its divisors is an integer number (10367280).

Almost surely, 2^421589124 is an apocalyptic number.

421589124 is a gapful number since it is divisible by the number (44) 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 421589124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622036800).

421589124 is an abundant number, since it is smaller than the sum of its proper divisors (822484476).

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

421589124 is a wasteful number, since it uses less digits than its factorization.

421589124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4135 (or 4124 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 421589124 is about 20532.6355833829. The cubic root of 421589124 is about 749.8305537202.

It can be divided in two parts, 4215 and 89124, that added together give a palindrome (93339).

The spelling of 421589124 in words is "four hundred twenty-one million, five hundred eighty-nine thousand, one hundred twenty-four".