3112020 has 120 divisors (see below), whose sum is σ = 10428264. Its totient is φ = 774144.

The previous prime is 3112007. The next prime is 3112069. The reversal of 3112020 is 202113.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 63504 + 3048516 = 252^2 + 1746^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 3111993 and 3112011.

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 27484 + ... + 27596.

Almost surely, 2^3112020 is an apocalyptic number.

3112020 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 3112020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5214132).

3112020 is an abundant number, since it is smaller than the sum of its proper divisors (7316244).

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

3112020 is a wasteful number, since it uses less digits than its factorization.

3112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 3112020 is about 1764.0918343442. The cubic root of 3112020 is about 145.9981860036.

Adding to 3112020 its reverse (202113), we get a palindrome (3314133).

The spelling of 3112020 in words is "three million, one hundred twelve thousand, twenty".