6163220 has 72 divisors (see below), whose sum is σ = 15896160. Its totient is φ = 1995840.

The previous prime is 6163217. The next prime is 6163249. The reversal of 6163220 is 223616.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 6163192 and 6163201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18455 + ... + 18785.

It is an arithmetic number, because the mean of its divisors is an integer number (220780).

Almost surely, 2^6163220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6163220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7948080).

6163220 is an abundant number, since it is smaller than the sum of its proper divisors (9732940).

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

6163220 is a wasteful number, since it uses less digits than its factorization.

6163220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 6163220 is about 2482.5833319347. The cubic root of 6163220 is about 183.3450644468.

Adding to 6163220 its reverse (223616), we get a palindrome (6386836).

The spelling of 6163220 in words is "six million, one hundred sixty-three thousand, two hundred twenty".