6630020 has 12 divisors (see below), whose sum is σ = 13923084. Its totient is φ = 2652000.

The previous prime is 6630011. The next prime is 6630023. The reversal of 6630020 is 200366.

It can be written as a sum of positive squares in 2 ways, for example, as 4866436 + 1763584 = 2206^2 + 1328^2 .

It is not an unprimeable number, because it can be changed into a prime (6630023) 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, 165731 + ... + 165770.

It is an arithmetic number, because the mean of its divisors is an integer number (1160257).

Almost surely, 2^6630020 is an apocalyptic number.

It is an amenable number.

6630020 is an abundant number, since it is smaller than the sum of its proper divisors (7293064).

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

6630020 is a wasteful number, since it uses less digits than its factorization.

6630020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331510 (or 331508 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 6630020 is about 2574.8825215920. The cubic root of 6630020 is about 187.8617136072.

Adding to 6630020 its reverse (200366), we get a palindrome (6830386).

The spelling of 6630020 in words is "six million, six hundred thirty thousand, twenty".