7849138 has 32 divisors (see below), whose sum is σ = 14059008. Its totient is φ = 3244800.

The previous prime is 7849133. The next prime is 7849181. The reversal of 7849138 is 8319487.

It is a self number, because there is not a number n which added to its sum of digits gives 7849138.

It is not an unprimeable number, because it can be changed into a prime (7849133) 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, 11256 + ... + 11932.

It is an arithmetic number, because the mean of its divisors is an integer number (439344).

Almost surely, 2^7849138 is an apocalyptic number.

7849138 is a deficient number, since it is larger than the sum of its proper divisors (6209870).

7849138 is a wasteful number, since it uses less digits than its factorization.

7849138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738.

The product of its digits is 48384, while the sum is 40.

The square root of 7849138 is about 2801.6313105046. The cubic root of 7849138 is about 198.7348302703.

The spelling of 7849138 in words is "seven million, eight hundred forty-nine thousand, one hundred thirty-eight".