4686138 has 24 divisors (see below), whose sum is σ = 10202868. Its totient is φ = 1554432.

The previous prime is 4686137. The next prime is 4686163. The reversal of 4686138 is 8316864.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4678569 + 7569 = 2163^2 + 87^2 .

It is not an unprimeable number, because it can be changed into a prime (4686131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4120 + ... + 5132.

Almost surely, 2^4686138 is an apocalyptic number.

4686138 is an abundant number, since it is smaller than the sum of its proper divisors (5516730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4686138 is a wasteful number, since it uses less digits than its factorization.

4686138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278 (or 1275 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 4686138 is about 2164.7489461829. The cubic root of 4686138 is about 167.3420267472.

The spelling of 4686138 in words is "four million, six hundred eighty-six thousand, one hundred thirty-eight".