13860812 has 24 divisors (see below), whose sum is σ = 28928256. Its totient is φ = 5681808.

The previous prime is 13860809. The next prime is 13860827. The reversal of 13860812 is 21806831.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10118 + ... + 11405.

It is an arithmetic number, because the mean of its divisors is an integer number (1205344).

Almost surely, 2^13860812 is an apocalyptic number.

It is an amenable number.

13860812 is an abundant number, since it is smaller than the sum of its proper divisors (15067444).

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

13860812 is a wasteful number, since it uses less digits than its factorization.

13860812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21557 (or 21555 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 13860812 is about 3723.0111469078. The cubic root of 13860812 is about 240.2128435916.

The spelling of 13860812 in words is "thirteen million, eight hundred sixty thousand, eight hundred twelve".