420534120 has 32 divisors (see below), whose sum is σ = 1261602720. Its totient is φ = 112142400.

The previous prime is 420534113. The next prime is 420534137. The reversal of 420534120 is 21435024.

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 7 ways as a sum of consecutive naturals, for example, 1752106 + ... + 1752345.

It is an arithmetic number, because the mean of its divisors is an integer number (39425085).

Almost surely, 2^420534120 is an apocalyptic number.

420534120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420534120 is an abundant number, since it is smaller than the sum of its proper divisors (841068600).

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

420534120 is a wasteful number, since it uses less digits than its factorization.

420534120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3504465 (or 3504461 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 420534120 is about 20506.9285852367. The cubic root of 420534120 is about 749.2045611120.

Adding to 420534120 its reverse (21435024), we get a palindrome (441969144).

The spelling of 420534120 in words is "four hundred twenty million, five hundred thirty-four thousand, one hundred twenty".