420240112 has 20 divisors (see below), whose sum is σ = 815929920. Its totient is φ = 209677568.

The previous prime is 420240101. The next prime is 420240133. The reversal of 420240112 is 211042024.

It is a Harshad number since it is a multiple of its sum of digits (16).

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 3 ways as a sum of consecutive naturals, for example, 19753 + ... + 35080.

It is an arithmetic number, because the mean of its divisors is an integer number (40796496).

Almost surely, 2^420240112 is an apocalyptic number.

It is an amenable number.

420240112 is a deficient number, since it is larger than the sum of its proper divisors (395689808).

420240112 is a wasteful number, since it uses less digits than its factorization.

420240112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55320 (or 55314 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 420240112 is about 20499.7588278497. The cubic root of 420240112 is about 749.0299232907.

Adding to 420240112 its reverse (211042024), we get a palindrome (631282136).

The spelling of 420240112 in words is "four hundred twenty million, two hundred forty thousand, one hundred twelve".