6355620 has 144 divisors (see below), whose sum is σ = 21385728. Its totient is φ = 1520640.

The previous prime is 6355607. The next prime is 6355621. The reversal of 6355620 is 265536.

6355620 is a `hidden beast` number, since 6 + 35 + 5 + 620 = 666.

It is not an unprimeable number, because it can be changed into a prime (6355621) 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 47 ways as a sum of consecutive naturals, for example, 94827 + ... + 94893.

It is an arithmetic number, because the mean of its divisors is an integer number (148512).

Almost surely, 2^6355620 is an apocalyptic number.

6355620 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 6355620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10692864).

6355620 is an abundant number, since it is smaller than the sum of its proper divisors (15030108).

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

6355620 is a wasteful number, since it uses less digits than its factorization.

6355620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 6355620 is about 2521.0355015350. The cubic root of 6355620 is about 185.2334039671.

The spelling of 6355620 in words is "six million, three hundred fifty-five thousand, six hundred twenty".