4212420 has 24 divisors (see below), whose sum is σ = 11794944. Its totient is φ = 1123296.

The previous prime is 4212401. The next prime is 4212421. The reversal of 4212420 is 242124.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 4212420.

It is not an unprimeable number, because it can be changed into a prime (4212421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35044 + ... + 35163.

It is an arithmetic number, because the mean of its divisors is an integer number (491456).

Almost surely, 2^4212420 is an apocalyptic number.

It is an amenable number.

4212420 is an abundant number, since it is smaller than the sum of its proper divisors (7582524).

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

4212420 is a wasteful number, since it uses less digits than its factorization.

4212420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70219 (or 70217 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 4212420 is about 2052.4180860634. The cubic root of 4212420 is about 161.5017460600.

Adding to 4212420 its reverse (242124), we get a palindrome (4454544).

The spelling of 4212420 in words is "four million, two hundred twelve thousand, four hundred twenty".