6181992 has 48 divisors (see below), whose sum is σ = 17628000. Its totient is φ = 1951776.

The previous prime is 6181969. The next prime is 6181993. The reversal of 6181992 is 2991816.

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 not an unprimeable number, because it can be changed into a prime (6181993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 892 + ... + 3627.

It is an arithmetic number, because the mean of its divisors is an integer number (367250).

Almost surely, 2^6181992 is an apocalyptic number.

It is an amenable number.

6181992 is an abundant number, since it is smaller than the sum of its proper divisors (11446008).

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

6181992 is a wasteful number, since it uses less digits than its factorization.

6181992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4550 (or 4543 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 6181992 is about 2486.3611966084. The cubic root of 6181992 is about 183.5310205509.

The spelling of 6181992 in words is "six million, one hundred eighty-one thousand, nine hundred ninety-two".