4200220 has 12 divisors (see below), whose sum is σ = 8820504. Its totient is φ = 1680080.

The previous prime is 4200211. The next prime is 4200223. The reversal of 4200220 is 220024.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 4200197 and 4200206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4200223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104986 + ... + 105025.

It is an arithmetic number, because the mean of its divisors is an integer number (735042).

Almost surely, 2^4200220 is an apocalyptic number.

It is an amenable number.

4200220 is an abundant number, since it is smaller than the sum of its proper divisors (4620284).

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

4200220 is a wasteful number, since it uses less digits than its factorization.

4200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210020 (or 210018 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 4200220 is about 2049.4438269931. The cubic root of 4200220 is about 161.3456816509.

Adding to 4200220 its reverse (220024), we get a palindrome (4420244).

The spelling of 4200220 in words is "four million, two hundred thousand, two hundred twenty".