6021780 has 24 divisors (see below), whose sum is σ = 16861152. Its totient is φ = 1605792.

The previous prime is 6021773. The next prime is 6021809. The reversal of 6021780 is 871206.

It is a self number, because there is not a number n which added to its sum of digits gives 6021780.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50122 + ... + 50241.

It is an arithmetic number, because the mean of its divisors is an integer number (702548).

Almost surely, 2^6021780 is an apocalyptic number.

6021780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6021780 is an abundant number, since it is smaller than the sum of its proper divisors (10839372).

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

6021780 is a wasteful number, since it uses less digits than its factorization.

6021780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100375 (or 100373 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 6021780 is about 2453.9315393874. The cubic root of 6021780 is about 181.9316653655.

Adding to 6021780 its reverse (871206), we get a palindrome (6892986).

The spelling of 6021780 in words is "six million, twenty-one thousand, seven hundred eighty".