13860396 has 60 divisors (see below), whose sum is σ = 39537960. Its totient is φ = 4199040.

The previous prime is 13860391. The next prime is 13860449. The reversal of 13860396 is 69306831.

It is a happy number.

It is a super-2 number, since 2×13860396² = 384221154553632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13860396.

It is not an unprimeable number, because it can be changed into a prime (13860391) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1620 + ... + 5508.

It is an arithmetic number, because the mean of its divisors is an integer number (658966).

Almost surely, 2^13860396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13860396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19768980).

13860396 is an abundant number, since it is smaller than the sum of its proper divisors (25677564).

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

13860396 is a wasteful number, since it uses less digits than its factorization.

13860396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916 (or 3905 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 13860396 is about 3722.9552777330. The cubic root of 13860396 is about 240.2104404245.

The spelling of 13860396 in words is "thirteen million, eight hundred sixty thousand, three hundred ninety-six".