6281220 has 96 divisors (see below), whose sum is σ = 19869696. Its totient is φ = 1468800.

The previous prime is 6281213. The next prime is 6281237. The reversal of 6281220 is 221826.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 20307 + ... + 20613.

It is an arithmetic number, because the mean of its divisors is an integer number (206976).

Almost surely, 2^6281220 is an apocalyptic number.

6281220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6281220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9934848).

6281220 is an abundant number, since it is smaller than the sum of its proper divisors (13588476).

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

6281220 is a wasteful number, since it uses less digits than its factorization.

6281220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 6281220 is about 2506.2362219073. The cubic root of 6281220 is about 184.5077735578.

The spelling of 6281220 in words is "six million, two hundred eighty-one thousand, two hundred twenty".