4881138 has 32 divisors (see below), whose sum is σ = 10506240. Its totient is φ = 1506960.

The previous prime is 4881133. The next prime is 4881139. The reversal of 4881138 is 8311884.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4881099 and 4881108.

It is not an unprimeable number, because it can be changed into a prime (4881131) 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, 4903 + ... + 5813.

It is an arithmetic number, because the mean of its divisors is an integer number (328320).

Almost surely, 2^4881138 is an apocalyptic number.

4881138 is an abundant number, since it is smaller than the sum of its proper divisors (5625102).

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

4881138 is a wasteful number, since it uses less digits than its factorization.

4881138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982.

The product of its digits is 6144, while the sum is 33.

The square root of 4881138 is about 2209.3297626203. The cubic root of 4881138 is about 169.6317055727.

The spelling of 4881138 in words is "four million, eight hundred eighty-one thousand, one hundred thirty-eight".