13865370 has 64 divisors (see below), whose sum is σ = 36412416. Its totient is φ = 3363840.

The previous prime is 13865363. The next prime is 13865419. The reversal of 13865370 is 7356831.

It is a happy number.

13865370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15372 + ... + 16248.

It is an arithmetic number, because the mean of its divisors is an integer number (568944).

Almost surely, 2^13865370 is an apocalyptic number.

13865370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13865370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18206208).

13865370 is an abundant number, since it is smaller than the sum of its proper divisors (22547046).

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

13865370 is a wasteful number, since it uses less digits than its factorization.

13865370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 13865370 is about 3723.6232355060. The cubic root of 13865370 is about 240.2391712976.

The spelling of 13865370 in words is "thirteen million, eight hundred sixty-five thousand, three hundred seventy".