13810381 has 8 divisors (see below), whose sum is σ = 14917280. Its totient is φ = 12709872.

The previous prime is 13810367. The next prime is 13810403. The reversal of 13810381 is 18301831.

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

It is a cyclic number.

It is not a de Polignac number, because 13810381 - 2¹⁵ = 13777613 is a prime.

It is a super-2 number, since 2×13810381² = 381453246730322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13810301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3526 + ... + 6328.

It is an arithmetic number, because the mean of its divisors is an integer number (1864660).

Almost surely, 2^13810381 is an apocalyptic number.

It is an amenable number.

13810381 is a deficient number, since it is larger than the sum of its proper divisors (1106899).

13810381 is a wasteful number, since it uses less digits than its factorization.

13810381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3195.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 13810381 is about 3716.2320971651. The cubic root of 13810381 is about 239.9211604468.

The spelling of 13810381 in words is "thirteen million, eight hundred ten thousand, three hundred eighty-one".