13963860 has 96 divisors (see below), whose sum is σ = 45763200. Its totient is φ = 3525120.

The previous prime is 13963853. The next prime is 13963861. The reversal of 13963860 is 6836931.

It is a happy number.

13963860 is a `hidden beast` number, since 13 + 9 + 638 + 6 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13963861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9580 + ... + 10940.

It is an arithmetic number, because the mean of its divisors is an integer number (476700).

Almost surely, 2^13963860 is an apocalyptic number.

13963860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13963860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22881600).

13963860 is an abundant number, since it is smaller than the sum of its proper divisors (31799340).

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

13963860 is a wasteful number, since it uses less digits than its factorization.

13963860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398 (or 1390 counting only the distinct ones).

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

The square root of 13963860 is about 3736.8248554087. The cubic root of 13963860 is about 240.8066607062.

The spelling of 13963860 in words is "thirteen million, nine hundred sixty-three thousand, eight hundred sixty".