13645104 has 80 divisors (see below), whose sum is σ = 39414144. Its totient is φ = 4032000.

The previous prime is 13645057. The next prime is 13645127. The reversal of 13645104 is 40154631.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22404 + ... + 23004.

Almost surely, 2^13645104 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 13645104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19707072).

13645104 is an abundant number, since it is smaller than the sum of its proper divisors (25769040).

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

13645104 is a wasteful number, since it uses less digits than its factorization.

13645104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 13645104 is about 3693.9279906354. The cubic root of 13645104 is about 238.9602240021.

Adding to 13645104 its reverse (40154631), we get a palindrome (53799735).

The spelling of 13645104 in words is "thirteen million, six hundred forty-five thousand, one hundred four".