3138327438 has 32 divisors (see below), whose sum is σ = 6343045632. Its totient is φ = 1035091200.

The previous prime is 3138327431. The next prime is 3138327443. The reversal of 3138327438 is 8347238313.

It is a self number, because there is not a number n which added to its sum of digits gives 3138327438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138327431) 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 15 ways as a sum of consecutive naturals, for example, 271803 + ... + 283113.

It is an arithmetic number, because the mean of its divisors is an integer number (198220176).

Almost surely, 2^3138327438 is an apocalyptic number.

3138327438 is an abundant number, since it is smaller than the sum of its proper divisors (3204718194).

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

3138327438 is a wasteful number, since it uses less digits than its factorization.

3138327438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11800.

The product of its digits is 290304, while the sum is 42.

The square root of 3138327438 is about 56020.7768421681. The cubic root of 3138327438 is about 1464.0843036123.

It can be divided in two parts, 3138327 and 438, that added together give a triangular number (3138765 = T₂₅₀₅).

The spelling of 3138327438 in words is "three billion, one hundred thirty-eight million, three hundred twenty-seven thousand, four hundred thirty-eight".