13963728 has 40 divisors (see below), whose sum is σ = 36210976. Its totient is φ = 4636800.

The previous prime is 13963723. The next prime is 13963753. The reversal of 13963728 is 82736931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13963723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19863 + ... + 20553.

Almost surely, 2^13963728 is an apocalyptic number.

It is an amenable number.

13963728 is an abundant number, since it is smaller than the sum of its proper divisors (22247248).

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

13963728 is a wasteful number, since it uses less digits than its factorization.

13963728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123 (or 1117 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 13963728 is about 3736.8071933136. The cubic root of 13963728 is about 240.8059019241.

The spelling of 13963728 in words is "thirteen million, nine hundred sixty-three thousand, seven hundred twenty-eight".