4352220 has 36 divisors (see below), whose sum is σ = 13202280. Its totient is φ = 1160544.

The previous prime is 4352209. The next prime is 4352237. The reversal of 4352220 is 222534.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4352193 and 4352202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11910 + ... + 12269.

It is an arithmetic number, because the mean of its divisors is an integer number (366730).

Almost surely, 2^4352220 is an apocalyptic number.

It is an amenable number.

4352220 is an abundant number, since it is smaller than the sum of its proper divisors (8850060).

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

4352220 is a wasteful number, since it uses less digits than its factorization.

4352220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24194 (or 24189 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 4352220 is about 2086.1974978415. The cubic root of 4352220 is about 163.2689551459.

Adding to 4352220 its reverse (222534), we get a palindrome (4574754).

The spelling of 4352220 in words is "four million, three hundred fifty-two thousand, two hundred twenty".