6171940 has 12 divisors (see below), whose sum is σ = 12961116. Its totient is φ = 2468768.

The previous prime is 6171917. The next prime is 6171953. The reversal of 6171940 is 491716.

It can be written as a sum of positive squares in 2 ways, for example, as 4553956 + 1617984 = 2134^2 + 1272^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6171899 and 6171908.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 154279 + ... + 154318.

It is an arithmetic number, because the mean of its divisors is an integer number (1080093).

Almost surely, 2^6171940 is an apocalyptic number.

It is an amenable number.

6171940 is an abundant number, since it is smaller than the sum of its proper divisors (6789176).

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

6171940 is a wasteful number, since it uses less digits than its factorization.

6171940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308606 (or 308604 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 6171940 is about 2484.3389462793. The cubic root of 6171940 is about 183.4314919717.

The spelling of 6171940 in words is "six million, one hundred seventy-one thousand, nine hundred forty".