6411820 has 12 divisors (see below), whose sum is σ = 13464864. Its totient is φ = 2564720.

The previous prime is 6411799. The next prime is 6411829. The reversal of 6411820 is 281146.

6411820 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×6411820² = 82222871424800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6411791 and 6411800.

It is not an unprimeable number, because it can be changed into a prime (6411829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160276 + ... + 160315.

It is an arithmetic number, because the mean of its divisors is an integer number (1122072).

Almost surely, 2^6411820 is an apocalyptic number.

It is an amenable number.

6411820 is an abundant number, since it is smaller than the sum of its proper divisors (7053044).

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

6411820 is a wasteful number, since it uses less digits than its factorization.

6411820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320600 (or 320598 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 6411820 is about 2532.1571831148. The cubic root of 6411820 is about 185.7777821762. Note that the first 4 decimals are identical.

Adding to 6411820 its reverse (281146), we get a palindrome (6692966).

The spelling of 6411820 in words is "six million, four hundred eleven thousand, eight hundred twenty".