6020021780 has 12 divisors (see below), whose sum is σ = 12642045780. Its totient is φ = 2408008704.

The previous prime is 6020021779. The next prime is 6020021873. The reversal of 6020021780 is 871200206.

It can be written as a sum of positive squares in 2 ways, for example, as 1821240976 + 4198780804 = 42676^2 + 64798^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150500525 + ... + 150500564.

It is an arithmetic number, because the mean of its divisors is an integer number (1053503815).

Almost surely, 2^6020021780 is an apocalyptic number.

It is an amenable number.

6020021780 is an abundant number, since it is smaller than the sum of its proper divisors (6622024000).

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

6020021780 is a wasteful number, since it uses less digits than its factorization.

6020021780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301001098 (or 301001096 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 6020021780 is about 77588.7993205205. The cubic root of 6020021780 is about 1819.1395703402.

Adding to 6020021780 its reverse (871200206), we get a palindrome (6891221986).

The spelling of 6020021780 in words is "six billion, twenty million, twenty-one thousand, seven hundred eighty".