13578828 has 12 divisors (see below), whose sum is σ = 31683960. Its totient is φ = 4526272.

The previous prime is 13578827. The next prime is 13578833. The reversal of 13578828 is 82887531.

It is a happy number.

13578828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 13578828.

It is not an unprimeable number, because it can be changed into a prime (13578827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565773 + ... + 565796.

It is an arithmetic number, because the mean of its divisors is an integer number (2640330).

Almost surely, 2^13578828 is an apocalyptic number.

It is an amenable number.

13578828 is an abundant number, since it is smaller than the sum of its proper divisors (18105132).

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

13578828 is a wasteful number, since it uses less digits than its factorization.

13578828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131576 (or 1131574 counting only the distinct ones).

The product of its digits is 107520, while the sum is 42.

The square root of 13578828 is about 3684.9461325778. The cubic root of 13578828 is about 238.5727092197.

The spelling of 13578828 in words is "thirteen million, five hundred seventy-eight thousand, eight hundred twenty-eight".