421264328 has 16 divisors (see below), whose sum is σ = 794286000. Its totient is φ = 209454736.

The previous prime is 421264247. The next prime is 421264331. The reversal of 421264328 is 823462124.

It is a junction number, because it is equal to n+sod(n) for n = 421264294 and 421264303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145658 + ... + 148521.

It is an arithmetic number, because the mean of its divisors is an integer number (49642875).

Almost surely, 2^421264328 is an apocalyptic number.

It is an amenable number.

421264328 is a deficient number, since it is larger than the sum of its proper divisors (373021672).

421264328 is a wasteful number, since it uses less digits than its factorization.

421264328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294364 (or 294360 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 421264328 is about 20524.7247971806. The cubic root of 421264328 is about 749.6379455465.

The spelling of 421264328 in words is "four hundred twenty-one million, two hundred sixty-four thousand, three hundred twenty-eight".