4091049 has 12 divisors (see below), whose sum is σ = 5936112. Its totient is φ = 2715000.

The previous prime is 4091047. The next prime is 4091069. The reversal of 4091049 is 9401904.

It is not a de Polignac number, because 4091049 - 2¹ = 4091047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4091047) 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 11 ways as a sum of consecutive naturals, for example, 1354 + ... + 3164.

It is an arithmetic number, because the mean of its divisors is an integer number (494676).

Almost surely, 2^4091049 is an apocalyptic number.

It is an amenable number.

4091049 is a deficient number, since it is larger than the sum of its proper divisors (1845063).

4091049 is a wasteful number, since it uses less digits than its factorization.

4091049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 4091049 is about 2022.6341735470. The cubic root of 4091049 is about 159.9355078624.

The spelling of 4091049 in words is "four million, ninety-one thousand, forty-nine".