3544220 has 12 divisors (see below), whose sum is σ = 7442904. Its totient is φ = 1417680.

The previous prime is 3544217. The next prime is 3544237. The reversal of 3544220 is 224453.

It is a super-2 number, since 2×3544220² = 25122990816800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 177211 = 3544220 / (3 + 5 + 4 + 4 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 3544192 and 3544201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88586 + ... + 88625.

It is an arithmetic number, because the mean of its divisors is an integer number (620242).

Almost surely, 2^3544220 is an apocalyptic number.

It is an amenable number.

3544220 is an abundant number, since it is smaller than the sum of its proper divisors (3898684).

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

3544220 is a wasteful number, since it uses less digits than its factorization.

3544220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177220 (or 177218 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 3544220 is about 1882.6098905509. The cubic root of 3544220 is about 152.4661933483.

Adding to 3544220 its reverse (224453), we get a palindrome (3768673).

The spelling of 3544220 in words is "three million, five hundred forty-four thousand, two hundred twenty".