13831838 has 8 divisors (see below), whose sum is σ = 20856960. Its totient is φ = 6879520.

The previous prime is 13831837. The next prime is 13831841. The reversal of 13831838 is 83813831.

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

It is a junction number, because it is equal to n+sod(n) for n = 13831798 and 13831807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13831837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17723 + ... + 18486.

It is an arithmetic number, because the mean of its divisors is an integer number (2607120).

Almost surely, 2^13831838 is an apocalyptic number.

13831838 is a deficient number, since it is larger than the sum of its proper divisors (7025122).

13831838 is a wasteful number, since it uses less digits than its factorization.

13831838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36402.

The product of its digits is 13824, while the sum is 35.

The square root of 13831838 is about 3719.1179061708. The cubic root of 13831838 is about 240.0453502264.

The spelling of 13831838 in words is "thirteen million, eight hundred thirty-one thousand, eight hundred thirty-eight".