4138849 has 16 divisors (see below), whose sum is σ = 4927104. Its totient is φ = 3427200.

The previous prime is 4138847. The next prime is 4138853. The reversal of 4138849 is 9488314.

It is a cyclic number.

It is not a de Polignac number, because 4138849 - 2¹ = 4138847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4138843) 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 15 ways as a sum of consecutive naturals, for example, 14589 + ... + 14869.

It is an arithmetic number, because the mean of its divisors is an integer number (307944).

Almost surely, 2^4138849 is an apocalyptic number.

It is an amenable number.

4138849 is a deficient number, since it is larger than the sum of its proper divisors (788255).

4138849 is a wasteful number, since it uses less digits than its factorization.

4138849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408.

The product of its digits is 27648, while the sum is 37.

The square root of 4138849 is about 2034.4161324567. The cubic root of 4138849 is about 160.5559953816. Note that the first 3 decimals are identical.

The spelling of 4138849 in words is "four million, one hundred thirty-eight thousand, eight hundred forty-nine".