6213888 has 144 divisors (see below), whose sum is σ = 19622400. Its totient is φ = 1935360.

The previous prime is 6213869. The next prime is 6213899. The reversal of 6213888 is 8883126.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×6213888² = 77224808153088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200433 + ... + 200463.

Almost surely, 2^6213888 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 6213888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9811200).

6213888 is an abundant number, since it is smaller than the sum of its proper divisors (13408512).

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

6213888 is a wasteful number, since it uses less digits than its factorization.

6213888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 65 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 6213888 is about 2492.7671371390. The cubic root of 6213888 is about 183.8461221366.

It can be divided in two parts, 62138 and 88, that added together give a palindrome (62226).

The spelling of 6213888 in words is "six million, two hundred thirteen thousand, eight hundred eighty-eight".