6181872 has 40 divisors (see below), whose sum is σ = 16524240. Its totient is φ = 1989120.

The previous prime is 6181841. The next prime is 6181873. The reversal of 6181872 is 2781816.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6181873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829 + ... + 3612.

It is an arithmetic number, because the mean of its divisors is an integer number (413106).

Almost surely, 2^6181872 is an apocalyptic number.

It is an amenable number.

6181872 is an abundant number, since it is smaller than the sum of its proper divisors (10342368).

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

6181872 is a wasteful number, since it uses less digits than its factorization.

6181872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4481 (or 4475 counting only the distinct ones).

The product of its digits is 5376, while the sum is 33.

The square root of 6181872 is about 2486.3370648406. The cubic root of 6181872 is about 183.5298330230.

The spelling of 6181872 in words is "six million, one hundred eighty-one thousand, eight hundred seventy-two".