3130020 has 36 divisors (see below), whose sum is σ = 9494940. Its totient is φ = 834624.

The previous prime is 3130019. The next prime is 3130027. The reversal of 3130020 is 200313.

It is a happy number.

3130020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1557504 + 1572516 = 1248^2 + 1254^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 = 3129984 and 3130011.

It is not an unprimeable number, because it can be changed into a prime (3130027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8515 + ... + 8874.

Almost surely, 2^3130020 is an apocalyptic number.

3130020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3130020 is an abundant number, since it is smaller than the sum of its proper divisors (6364920).

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

3130020 is a wasteful number, since it uses less digits than its factorization.

3130020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17404 (or 17399 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 3130020 is about 1769.1862536206. The cubic root of 3130020 is about 146.2791307302.

Adding to 3130020 its reverse (200313), we get a palindrome (3330333).

The spelling of 3130020 in words is "three million, one hundred thirty thousand, twenty".