3113220 has 96 divisors (see below), whose sum is σ = 9797760. Its totient is φ = 732160.

The previous prime is 3113213. The next prime is 3113221. The reversal of 3113220 is 223113.

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 = 3113196 and 3113205.

It is not an unprimeable number, because it can be changed into a prime (3113221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34936 + ... + 35024.

It is an arithmetic number, because the mean of its divisors is an integer number (102060).

Almost surely, 2^3113220 is an apocalyptic number.

3113220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3113220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4898880).

3113220 is an abundant number, since it is smaller than the sum of its proper divisors (6684540).

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

3113220 is a wasteful number, since it uses less digits than its factorization.

3113220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 3113220 is about 1764.4319199108. The cubic root of 3113220 is about 146.0169493052.

Adding to 3113220 its reverse (223113), we get a palindrome (3336333).

It can be divided in two parts, 3113 and 220, that added together give a palindrome (3333).

The spelling of 3113220 in words is "three million, one hundred thirteen thousand, two hundred twenty".