13288736 has 12 divisors (see below), whose sum is σ = 26162262. Its totient is φ = 6644352.

The previous prime is 13288727. The next prime is 13288741. The reversal of 13288736 is 63788231.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13278736 + 10000 = 3644^2 + 100^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13288736.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207605 + ... + 207668.

Almost surely, 2^13288736 is an apocalyptic number.

13288736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13288736 is a deficient number, since it is larger than the sum of its proper divisors (12873526).

13288736 is an equidigital number, since it uses as much as digits as its factorization.

13288736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415283 (or 415275 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 13288736 is about 3645.3718603182. The cubic root of 13288736 is about 236.8615450572.

The spelling of 13288736 in words is "thirteen million, two hundred eighty-eight thousand, seven hundred thirty-six".