4049138 has 16 divisors (see below), whose sum is σ = 6272640. Its totient is φ = 1959216.

The previous prime is 4049131. The next prime is 4049153. The reversal of 4049138 is 8319404.

It is a self number, because there is not a number n which added to its sum of digits gives 4049138.

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 7 ways as a sum of consecutive naturals, for example, 16823 + ... + 17061.

It is an arithmetic number, because the mean of its divisors is an integer number (392040).

Almost surely, 2^4049138 is an apocalyptic number.

4049138 is a deficient number, since it is larger than the sum of its proper divisors (2223502).

4049138 is a wasteful number, since it uses less digits than its factorization.

4049138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 4049138 is about 2012.2470027310. The cubic root of 4049138 is about 159.3874757887.

The spelling of 4049138 in words is "four million, forty-nine thousand, one hundred thirty-eight".