421134120 has 128 divisors (see below), whose sum is σ = 1531440000. Its totient is φ = 102090240.

The previous prime is 421134113. The next prime is 421134139. The reversal of 421134120 is 21431124.

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

It is a junction number, because it is equal to n+sod(n) for n = 421134093 and 421134102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5845 + ... + 29604.

It is an arithmetic number, because the mean of its divisors is an integer number (11964375).

Almost surely, 2^421134120 is an apocalyptic number.

421134120 is a gapful number since it is divisible by the number (40) 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 421134120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765720000).

421134120 is an abundant number, since it is smaller than the sum of its proper divisors (1110305880).

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

421134120 is a wasteful number, since it uses less digits than its factorization.

421134120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35480 (or 35470 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 421134120 is about 20521.5525728440. The cubic root of 421134120 is about 749.5607027408.

Adding to 421134120 its reverse (21431124), we get a palindrome (442565244).

The spelling of 421134120 in words is "four hundred twenty-one million, one hundred thirty-four thousand, one hundred twenty".