3020780 has 24 divisors (see below), whose sum is σ = 7250208. Its totient is φ = 1035648.

The previous prime is 3020779. The next prime is 3020783. The reversal of 3020780 is 870203.

It is a super-2 number, since 2×3020780² = 18250223616800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (3020783) by changing a digit.

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, 10649 + ... + 10928.

It is an arithmetic number, because the mean of its divisors is an integer number (302092).

Almost surely, 2^3020780 is an apocalyptic number.

It is an amenable number.

3020780 is an abundant number, since it is smaller than the sum of its proper divisors (4229428).

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

3020780 is a wasteful number, since it uses less digits than its factorization.

3020780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21593 (or 21591 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 3020780 is about 1738.0391249911. The cubic root of 3020780 is about 144.5571905180.

Adding to 3020780 its reverse (870203), we get a palindrome (3890983).

The spelling of 3020780 in words is "three million, twenty thousand, seven hundred eighty".