4939128 has 48 divisors (see below), whose sum is σ = 13486200. Its totient is φ = 1632960.

The previous prime is 4939127. The next prime is 4939139. The reversal of 4939128 is 8219394.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 4939092 and 4939101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4939127) 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 11 ways as a sum of consecutive naturals, for example, 12843 + ... + 13221.

Almost surely, 2^4939128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4939128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6743100).

4939128 is an abundant number, since it is smaller than the sum of its proper divisors (8547072).

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

4939128 is a wasteful number, since it uses less digits than its factorization.

4939128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572 (or 565 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 4939128 is about 2222.4149027578. The cubic root of 4939128 is about 170.3008283616.

The spelling of 4939128 in words is "four million, nine hundred thirty-nine thousand, one hundred twenty-eight".