420513304 has 16 divisors (see below), whose sum is σ = 789549120. Its totient is φ = 209966880.

The previous prime is 420513283. The next prime is 420513391. The reversal of 420513304 is 403315024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29992 + ... + 41719.

It is an arithmetic number, because the mean of its divisors is an integer number (49346820).

Almost surely, 2^420513304 is an apocalyptic number.

It is an amenable number.

420513304 is a deficient number, since it is larger than the sum of its proper divisors (369035816).

420513304 is a wasteful number, since it uses less digits than its factorization.

420513304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72450 (or 72446 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 420513304 is about 20506.4210431757. The cubic root of 420513304 is about 749.1921992934.

Adding to 420513304 its reverse (403315024), we get a palindrome (823828328).

The spelling of 420513304 in words is "four hundred twenty million, five hundred thirteen thousand, three hundred four".