421130424 has 96 divisors (see below), whose sum is σ = 1243814400. Its totient is φ = 117786240.

The previous prime is 421130401. The next prime is 421130429. The reversal of 421130424 is 424031124.

It is a self number, because there is not a number n which added to its sum of digits gives 421130424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421130429) 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, 39897 + ... + 49335.

It is an arithmetic number, because the mean of its divisors is an integer number (12956400).

Almost surely, 2^421130424 is an apocalyptic number.

421130424 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 421130424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (621907200).

421130424 is an abundant number, since it is smaller than the sum of its proper divisors (822683976).

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

421130424 is a wasteful number, since it uses less digits than its factorization.

421130424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9485 (or 9468 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 421130424 is about 20521.4625209803. The cubic root of 421130424 is about 749.5585099441.

Adding to 421130424 its reverse (424031124), we get a palindrome (845161548).

The spelling of 421130424 in words is "four hundred twenty-one million, one hundred thirty thousand, four hundred twenty-four".