4939138 has 8 divisors (see below), whose sum is σ = 7419132. Its totient is φ = 2466096.

The previous prime is 4939127. The next prime is 4939139. The reversal of 4939138 is 8319394.

It can be written as a sum of positive squares in 2 ways, for example, as 4739329 + 199809 = 2177^2 + 447^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4939097 and 4939106.

It is not an unprimeable number, because it can be changed into a prime (4939139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756 + ... + 3232.

Almost surely, 2^4939138 is an apocalyptic number.

4939138 is a deficient number, since it is larger than the sum of its proper divisors (2479994).

4939138 is a wasteful number, since it uses less digits than its factorization.

4939138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3476.

The product of its digits is 23328, while the sum is 37.

The square root of 4939138 is about 2222.4171525616. The cubic root of 4939138 is about 170.3009432946.

The spelling of 4939138 in words is "four million, nine hundred thirty-nine thousand, one hundred thirty-eight".