421043460 has 48 divisors (see below), whose sum is σ = 1219579200. Its totient is φ = 108406144.

The previous prime is 421043449. The next prime is 421043527. The reversal of 421043460 is 64340124.

It is a self number, because there is not a number n which added to its sum of digits gives 421043460.

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 15 ways as a sum of consecutive naturals, for example, 119250 + ... + 122729.

It is an arithmetic number, because the mean of its divisors is an integer number (25407900).

Almost surely, 2^421043460 is an apocalyptic number.

It is an amenable number.

421043460 is an abundant number, since it is smaller than the sum of its proper divisors (798535740).

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

421043460 is a wasteful number, since it uses less digits than its factorization.

421043460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242020 (or 242018 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 421043460 is about 20519.3435567515. The cubic root of 421043460 is about 749.5069114448.

Adding to 421043460 its reverse (64340124), we get a palindrome (485383584).

The spelling of 421043460 in words is "four hundred twenty-one million, forty-three thousand, four hundred sixty".