4203420 has 96 divisors (see below), whose sum is σ = 13462848. Its totient is φ = 970752.

The previous prime is 4203391. The next prime is 4203421. The reversal of 4203420 is 243024.

It is a happy number.

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 4203420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4203421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13102 + ... + 13418.

It is an arithmetic number, because the mean of its divisors is an integer number (140238).

Almost surely, 2^4203420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4203420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6731424).

4203420 is an abundant number, since it is smaller than the sum of its proper divisors (9259428).

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

4203420 is a wasteful number, since it uses less digits than its factorization.

4203420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 4203420 is about 2050.2243779645. The cubic root of 4203420 is about 161.3866457844.

Adding to 4203420 its reverse (243024), we get a palindrome (4446444).

The spelling of 4203420 in words is "four million, two hundred three thousand, four hundred twenty".