6139888 has 30 divisors (see below), whose sum is σ = 12566904. Its totient is φ = 2905632.

The previous prime is 6139883. The next prime is 6139897. The reversal of 6139888 is 8889316.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6139883) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5245 + ... + 6307.

Almost surely, 2^6139888 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 6139888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6283452).

6139888 is an abundant number, since it is smaller than the sum of its proper divisors (6427016).

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

6139888 is a wasteful number, since it uses less digits than its factorization.

6139888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109 (or 1084 counting only the distinct ones).

The product of its digits is 82944, while the sum is 43.

The square root of 6139888 is about 2477.8797388090. The cubic root of 6139888 is about 183.1134097508.

It can be divided in two parts, 613 and 9888, that added together give a palindrome (10501).

The spelling of 6139888 in words is "six million, one hundred thirty-nine thousand, eight hundred eighty-eight".