420534415 has 48 divisors (see below), whose sum is σ = 629422272. Its totient is φ = 268240896.

The previous prime is 420534397. The next prime is 420534463. The reversal of 420534415 is 514435024.

It is not a de Polignac number, because 420534415 - 2⁹ = 420533903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 207487 + ... + 209503.

It is an arithmetic number, because the mean of its divisors is an integer number (13112964).

Almost surely, 2^420534415 is an apocalyptic number.

420534415 is a deficient number, since it is larger than the sum of its proper divisors (208887857).

420534415 is a wasteful number, since it uses less digits than its factorization.

420534415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096 (or 2089 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 420534415 is about 20506.9357779265. The cubic root of 420534415 is about 749.2047362982.

Adding to 420534415 its reverse (514435024), we get a palindrome (934969439).

The spelling of 420534415 in words is "four hundred twenty million, five hundred thirty-four thousand, four hundred fifteen".