4049181 has 12 divisors (see below), whose sum is σ = 5985408. Its totient is φ = 2636424.

The previous prime is 4049167. The next prime is 4049203. The reversal of 4049181 is 1819404.

It is not a de Polignac number, because 4049181 - 2¹³ = 4040989 is a prime.

It is a super-2 number, since 2×4049181² = 32791733541522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4049131) 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, 4845 + ... + 5618.

It is an arithmetic number, because the mean of its divisors is an integer number (498784).

Almost surely, 2^4049181 is an apocalyptic number.

It is an amenable number.

4049181 is a deficient number, since it is larger than the sum of its proper divisors (1936227).

4049181 is a wasteful number, since it uses less digits than its factorization.

4049181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10512 (or 10509 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 4049181 is about 2012.2576872757. The cubic root of 4049181 is about 159.3880399942.

The spelling of 4049181 in words is "four million, forty-nine thousand, one hundred eighty-one".