5438887938 has 128 divisors (see below), whose sum is σ = 13929062400. Its totient is φ = 1557662400.

The previous prime is 5438887879. The next prime is 5438887963. The reversal of 5438887938 is 8397888345.

5438887938 is a `hidden beast` number, since 543 + 8 + 8 + 87 + 9 + 3 + 8 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 788368 + ... + 795236.

It is an arithmetic number, because the mean of its divisors is an integer number (108820800).

Almost surely, 2^5438887938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5438887938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6964531200).

5438887938 is an abundant number, since it is smaller than the sum of its proper divisors (8490174462).

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

5438887938 is a wasteful number, since it uses less digits than its factorization.

5438887938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6965 (or 6959 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 63.

The square root of 5438887938 is about 73748.8165193178. The cubic root of 5438887938 is about 1758.6120188531.

The spelling of 5438887938 in words is "five billion, four hundred thirty-eight million, eight hundred eighty-seven thousand, nine hundred thirty-eight".