13712288 has 12 divisors (see below), whose sum is σ = 26996130. Its totient is φ = 6856128.

The previous prime is 13712269. The next prime is 13712299. The reversal of 13712288 is 88221731.

It can be written as a sum of positive squares in only one way, i.e., 13454224 + 258064 = 3668^2 + 508^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 428509 = 13712288 / (1 + 3 + 7 + 1 + 2 + 2 + 8 + 8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214223 + ... + 214286.

Almost surely, 2^13712288 is an apocalyptic number.

It is an amenable number.

13712288 is a deficient number, since it is larger than the sum of its proper divisors (13283842).

13712288 is an equidigital number, since it uses as much as digits as its factorization.

13712288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428519 (or 428511 counting only the distinct ones).

The product of its digits is 5376, while the sum is 32.

The square root of 13712288 is about 3703.0106670114. The cubic root of 13712288 is about 239.3517692486.

The spelling of 13712288 in words is "thirteen million, seven hundred twelve thousand, two hundred eighty-eight".