It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 6139992.
It is a congruent number.
Almost surely, 26139992 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 6139992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8262000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6139992 is a wasteful number, since it uses less digits than its factorization.
6139992 is an odious number, because the sum of its binary digits is odd.
The square root of 6139992 is about 2477.9007244036. The cubic root of 6139992 is about 183.1144436288.
The spelling of 6139992 in words is "six million, one hundred thirty-nine thousand, nine hundred ninety-two".