4181956 has 12 divisors (see below), whose sum is σ = 7335468. Its totient is φ = 2086112.

The previous prime is 4181953. The next prime is 4181981. The reversal of 4181956 is 6591814.

It can be written as a sum of positive squares in 2 ways, for example, as 1359556 + 2822400 = 1166^2 + 1680^2 .

It is not an unprimeable number, because it can be changed into a prime (4181953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1290 + ... + 3166.

It is an arithmetic number, because the mean of its divisors is an integer number (611289).

Almost surely, 2^4181956 is an apocalyptic number.

It is an amenable number.

4181956 is a deficient number, since it is larger than the sum of its proper divisors (3153512).

4181956 is a wasteful number, since it uses less digits than its factorization.

4181956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438 (or 2436 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The square root of 4181956 is about 2044.9831295148. The cubic root of 4181956 is about 161.1114797015. Note that the first 3 decimals are identical.

The spelling of 4181956 in words is "four million, one hundred eighty-one thousand, nine hundred fifty-six".