4202220 has 48 divisors (see below), whose sum is σ = 12837888. Its totient is φ = 1018560.

The previous prime is 4202203. The next prime is 4202227. The reversal of 4202220 is 222024.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 4202196 and 4202205.

It is not an unprimeable number, because it can be changed into a prime (4202227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2524 + ... + 3843.

It is an arithmetic number, because the mean of its divisors is an integer number (267456).

Almost surely, 2^4202220 is an apocalyptic number.

It is an amenable number.

4202220 is an abundant number, since it is smaller than the sum of its proper divisors (8635668).

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

4202220 is a wasteful number, since it uses less digits than its factorization.

4202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6390 (or 6388 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 4202220 is about 2049.9317061795. The cubic root of 4202220 is about 161.3712866715.

Adding to 4202220 its reverse (222024), we get a palindrome (4424244).

The spelling of 4202220 in words is "four million, two hundred two thousand, two hundred twenty".