421331130 has 96 divisors (see below), whose sum is σ = 1201307328. Its totient is φ = 101606400.

The previous prime is 421331117. The next prime is 421331153. The reversal of 421331130 is 31133124.

It is a super-2 number, since 2×421331130² = 355039842214153800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 207882 + ... + 209898.

It is an arithmetic number, because the mean of its divisors is an integer number (12513618).

Almost surely, 2^421331130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421331130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (600653664).

421331130 is an abundant number, since it is smaller than the sum of its proper divisors (779976198).

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

421331130 is a wasteful number, since it uses less digits than its factorization.

421331130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252 (or 2249 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 421331130 is about 20526.3520870124. The cubic root of 421331130 is about 749.6775680701.

Adding to 421331130 its reverse (31133124), we get a palindrome (452464254).

The spelling of 421331130 in words is "four hundred twenty-one million, three hundred thirty-one thousand, one hundred thirty".