6380020 has 12 divisors (see below), whose sum is σ = 13398084. Its totient is φ = 2552000.

The previous prime is 6379999. The next prime is 6380027. The reversal of 6380020 is 200836.

6380020 = T₁₅₉₅ + T₁₅₉₆ + ... + T₁₅₉₉.

It can be written as a sum of positive squares in 2 ways, for example, as 1263376 + 5116644 = 1124^2 + 2262^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6380020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6380027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159481 + ... + 159520.

It is an arithmetic number, because the mean of its divisors is an integer number (1116507).

Almost surely, 2^6380020 is an apocalyptic number.

It is an amenable number.

6380020 is an abundant number, since it is smaller than the sum of its proper divisors (7018064).

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

6380020 is a wasteful number, since it uses less digits than its factorization.

6380020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319010 (or 319008 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 6380020 is about 2525.8701470978. The cubic root of 6380020 is about 185.4701458047.

Adding to 6380020 its reverse (200836), we get a palindrome (6580856).

The spelling of 6380020 in words is "six million, three hundred eighty thousand, twenty".