3472220 has 24 divisors (see below), whose sum is σ = 7350000. Its totient is φ = 1377792.

The previous prime is 3472213. The next prime is 3472223. The reversal of 3472220 is 222743.

It is a happy number.

3472220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3472192 and 3472201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3472223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2156 + ... + 3404.

It is an arithmetic number, because the mean of its divisors is an integer number (306250).

Almost surely, 2^3472220 is an apocalyptic number.

It is an amenable number.

3472220 is an abundant number, since it is smaller than the sum of its proper divisors (3877780).

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

3472220 is a wasteful number, since it uses less digits than its factorization.

3472220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397 (or 1395 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 3472220 is about 1863.3893849649. The cubic root of 3472220 is about 151.4266837650.

Adding to 3472220 its reverse (222743), we get a palindrome (3694963).

The spelling of 3472220 in words is "three million, four hundred seventy-two thousand, two hundred twenty".