420303504 has 20 divisors (see below), whose sum is σ = 1085784176. Its totient is φ = 140101152.

The previous prime is 420303497. The next prime is 420303547. The reversal of 420303504 is 405303024.

It is a happy number.

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, 4378114 + ... + 4378209.

Almost surely, 2^420303504 is an apocalyptic number.

It is an amenable number.

420303504 is an abundant number, since it is smaller than the sum of its proper divisors (665480672).

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

420303504 is a wasteful number, since it uses less digits than its factorization.

420303504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8756334 (or 8756328 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 420303504 is about 20501.3049340768. The cubic root of 420303504 is about 749.0675843930.

Adding to 420303504 its reverse (405303024), we get a palindrome (825606528).

The spelling of 420303504 in words is "four hundred twenty million, three hundred three thousand, five hundred four".