421125312 has 42 divisors (see below), whose sum is σ = 1114980244. Its totient is φ = 140280320.

The previous prime is 421125281. The next prime is 421125337. The reversal of 421125312 is 213521124.

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 5 ways as a sum of consecutive naturals, for example, 283612 + ... + 285092.

Almost surely, 2^421125312 is an apocalyptic number.

It is an amenable number.

421125312 is an abundant number, since it is smaller than the sum of its proper divisors (693854932).

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

421125312 is an frugal number, since it uses more digits than its factorization.

421125312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2977 (or 1486 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 421125312 is about 20521.3379680761. The cubic root of 421125312 is about 749.5554770289. Note that the first 3 decimals are identical.

Adding to 421125312 its reverse (213521124), we get a palindrome (634646436).

The spelling of 421125312 in words is "four hundred twenty-one million, one hundred twenty-five thousand, three hundred twelve".