13813830 has 24 divisors (see below), whose sum is σ = 35916192. Its totient is φ = 3683664.

The previous prime is 13813829. The next prime is 13813841. The reversal of 13813830 is 3831831.

It is a super-3 number, since 3×13813830³ (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13813794 and 13813803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76654 + ... + 76833.

It is an arithmetic number, because the mean of its divisors is an integer number (1496508).

Almost surely, 2^13813830 is an apocalyptic number.

13813830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13813830 is an abundant number, since it is smaller than the sum of its proper divisors (22102362).

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

13813830 is a wasteful number, since it uses less digits than its factorization.

13813830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153500 (or 153497 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 13813830 is about 3716.6961134857. The cubic root of 13813830 is about 239.9411313949.

The spelling of 13813830 in words is "thirteen million, eight hundred thirteen thousand, eight hundred thirty".