6138936 has 64 divisors (see below), whose sum is σ = 17287200. Its totient is φ = 2018304.

The previous prime is 6138901. The next prime is 6138947. The reversal of 6138936 is 6398316.

It is a happy number.

6138936 is a `hidden beast` number, since 613 + 8 + 9 + 36 = 666.

6138936 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 a self number, because there is not a number n which added to its sum of digits gives 6138936.

It is a congruent number.

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, 20806 + ... + 21098.

Almost surely, 2^6138936 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 6138936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8643600).

6138936 is an abundant number, since it is smaller than the sum of its proper divisors (11148264).

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

6138936 is a wasteful number, since it uses less digits than its factorization.

6138936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405 (or 395 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 6138936 is about 2477.6876316437. The cubic root of 6138936 is about 183.1039452471.

It can be divided in two parts, 61389 and 36, that added together give a triangular number (61425 = T₃₅₀).

The spelling of 6138936 in words is "six million, one hundred thirty-eight thousand, nine hundred thirty-six".