4782840138 has 48 divisors (see below), whose sum is σ = 10791331200. Its totient is φ = 1529085600.

The previous prime is 4782840107. The next prime is 4782840143. The reversal of 4782840138 is 8310482874.

4782840138 is a `hidden beast` number, since 478 + 2 + 8 + 40 + 138 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 4782840093 and 4782840102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48483 + ... + 109161.

It is an arithmetic number, because the mean of its divisors is an integer number (224819400).

Almost surely, 2^4782840138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4782840138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5395665600).

4782840138 is an abundant number, since it is smaller than the sum of its proper divisors (6008491062).

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

4782840138 is a wasteful number, since it uses less digits than its factorization.

4782840138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60867 (or 60864 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The square root of 4782840138 is about 69158.0807859790. The cubic root of 4782840138 is about 1684.8527653874.

The spelling of 4782840138 in words is "four billion, seven hundred eighty-two million, eight hundred forty thousand, one hundred thirty-eight".