4091112 has 24 divisors (see below), whose sum is σ = 11080290. Its totient is φ = 1363680.

The previous prime is 4091083. The next prime is 4091161. The reversal of 4091112 is 2111904.

It can be written as a sum of positive squares in only one way, i.e., 3663396 + 427716 = 1914^2 + 654^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 28339 + ... + 28482.

Almost surely, 2^4091112 is an apocalyptic number.

It is an amenable number.

4091112 is an abundant number, since it is smaller than the sum of its proper divisors (6989178).

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

4091112 is a wasteful number, since it uses less digits than its factorization.

4091112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56833 (or 56826 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 4091112 is about 2022.6497472375. The cubic root of 4091112 is about 159.9363288324.

It can be divided in two parts, 409 and 1112, that added together give a square (1521 = 39²).

The spelling of 4091112 in words is "four million, ninety-one thousand, one hundred twelve".