3020520 has 32 divisors (see below), whose sum is σ = 9061920. Its totient is φ = 805440.

The previous prime is 3020513. The next prime is 3020527. The reversal of 3020520 is 250203.

3020520 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3020513) and next prime (3020527).

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 = 3020496 and 3020505.

It is not an unprimeable number, because it can be changed into a prime (3020527) 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 7 ways as a sum of consecutive naturals, for example, 12466 + ... + 12705.

It is an arithmetic number, because the mean of its divisors is an integer number (283185).

Almost surely, 2^3020520 is an apocalyptic number.

3020520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3020520 is an abundant number, since it is smaller than the sum of its proper divisors (6041400).

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

3020520 is a wasteful number, since it uses less digits than its factorization.

3020520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25185 (or 25181 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 3020520 is about 1737.9643264463. The cubic root of 3020520 is about 144.5530430298.

Adding to 3020520 its reverse (250203), we get a palindrome (3270723).

The spelling of 3020520 in words is "three million, twenty thousand, five hundred twenty".