421152120 has 96 divisors (see below), whose sum is σ = 1388106720. Its totient is φ = 110718720.

The previous prime is 421152097. The next prime is 421152131. The reversal of 421152120 is 21251124.

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 = 421152093 and 421152102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17322 + ... + 33798.

It is an arithmetic number, because the mean of its divisors is an integer number (14459445).

Almost surely, 2^421152120 is an apocalyptic number.

421152120 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 421152120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (694053360).

421152120 is an abundant number, since it is smaller than the sum of its proper divisors (966954600).

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

421152120 is a wasteful number, since it uses less digits than its factorization.

421152120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16565 (or 16558 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 421152120 is about 20521.9911314668. The cubic root of 421152120 is about 749.5713817619.

The spelling of 421152120 in words is "four hundred twenty-one million, one hundred fifty-two thousand, one hundred twenty".