3120020 has 24 divisors (see below), whose sum is σ = 6644904. Its totient is φ = 1230336.

The previous prime is 3120017. The next prime is 3120067. The reversal of 3120020 is 200213.

It can be written as a sum of positive squares in 4 ways, for example, as 15376 + 3104644 = 124^2 + 1762^2 .

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 7 ways as a sum of consecutive naturals, for example, 392 + ... + 2528.

It is an arithmetic number, because the mean of its divisors is an integer number (276871).

Almost surely, 2^3120020 is an apocalyptic number.

It is an amenable number.

3120020 is an abundant number, since it is smaller than the sum of its proper divisors (3524884).

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

3120020 is a wasteful number, since it uses less digits than its factorization.

3120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219 (or 2217 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 3120020 is about 1766.3578346417. The cubic root of 3120020 is about 146.1231837089.

Adding to 3120020 its reverse (200213), we get a palindrome (3320233).

The spelling of 3120020 in words is "three million, one hundred twenty thousand, twenty".