421430312 has 16 divisors (see below), whose sum is σ = 792998100. Its totient is φ = 209964160.

The previous prime is 421430281. The next prime is 421430327. The reversal of 421430312 is 213034124.

It can be written as a sum of positive squares in 2 ways, for example, as 408282436 + 13147876 = 20206^2 + 3626^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91487 + ... + 95982.

Almost surely, 2^421430312 is an apocalyptic number.

It is an amenable number.

421430312 is a deficient number, since it is larger than the sum of its proper divisors (371567788).

421430312 is a wasteful number, since it uses less digits than its factorization.

421430312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187756 (or 187752 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 421430312 is about 20528.7679123712. The cubic root of 421430312 is about 749.7363885414.

Adding to 421430312 its reverse (213034124), we get a palindrome (634464436).

The spelling of 421430312 in words is "four hundred twenty-one million, four hundred thirty thousand, three hundred twelve".