3456220 has 48 divisors (see below), whose sum is σ = 7711200. Its totient is φ = 1299200.

The previous prime is 3456217. The next prime is 3456227. The reversal of 3456220 is 226543.

3456220 = T₃₉ + T₄₀ + ... + T₂₇₄.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3456191 and 3456200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3456227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34170 + ... + 34270.

It is an arithmetic number, because the mean of its divisors is an integer number (160650).

Almost surely, 2^3456220 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 3456220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3855600).

3456220 is an abundant number, since it is smaller than the sum of its proper divisors (4254980).

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

3456220 is a wasteful number, since it uses less digits than its factorization.

3456220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 3456220 is about 1859.0911758168. The cubic root of 3456220 is about 151.1937340516.

The spelling of 3456220 in words is "three million, four hundred fifty-six thousand, two hundred twenty".