3157838 has 8 divisors (see below), whose sum is σ = 4986120. Its totient is φ = 1495800.

The previous prime is 3157837. The next prime is 3157853. The reversal of 3157838 is 8387513.

3157838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3157798 and 3157807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3157837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41513 + ... + 41588.

It is an arithmetic number, because the mean of its divisors is an integer number (623265).

Almost surely, 2^3157838 is an apocalyptic number.

3157838 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3157838 is a deficient number, since it is larger than the sum of its proper divisors (1828282).

3157838 is a wasteful number, since it uses less digits than its factorization.

3157838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83122.

The product of its digits is 20160, while the sum is 35.

The square root of 3157838 is about 1777.0306694033. The cubic root of 3157838 is about 146.7112043345.

The spelling of 3157838 in words is "three million, one hundred fifty-seven thousand, eight hundred thirty-eight".