4138751388 has 24 divisors (see below), whose sum is σ = 10225150992. Its totient is φ = 1298431744.

The previous prime is 4138751359. The next prime is 4138751389. The reversal of 4138751388 is 8831578314.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4138751389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10143795 + ... + 10144202.

It is an arithmetic number, because the mean of its divisors is an integer number (426047958).

Almost surely, 2^4138751388 is an apocalyptic number.

It is an amenable number.

4138751388 is an abundant number, since it is smaller than the sum of its proper divisors (6086399604).

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

4138751388 is a wasteful number, since it uses less digits than its factorization.

4138751388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20288021 (or 20288019 counting only the distinct ones).

The product of its digits is 645120, while the sum is 48.

The square root of 4138751388 is about 64333.1282311066. The cubic root of 4138751388 is about 1605.5473316960.

The spelling of 4138751388 in words is "four billion, one hundred thirty-eight million, seven hundred fifty-one thousand, three hundred eighty-eight".