3815873438 has 8 divisors (see below), whose sum is σ = 6164103288. Its totient is φ = 1761172344.

The previous prime is 3815873437. The next prime is 3815873441. The reversal of 3815873438 is 8343785183.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3815873437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73382156 + ... + 73382207.

It is an arithmetic number, because the mean of its divisors is an integer number (770512911).

Almost surely, 2^3815873438 is an apocalyptic number.

3815873438 is a deficient number, since it is larger than the sum of its proper divisors (2348229850).

3815873438 is a wasteful number, since it uses less digits than its factorization.

3815873438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146764378.

The product of its digits is 1935360, while the sum is 50.

The square root of 3815873438 is about 61772.7564384171. The cubic root of 3815873438 is about 1562.6605702334.

The spelling of 3815873438 in words is "three billion, eight hundred fifteen million, eight hundred seventy-three thousand, four hundred thirty-eight".