11517472 has 24 divisors (see below), whose sum is σ = 22755600. Its totient is φ = 5738304.

The previous prime is 11517469. The next prime is 11517481. The reversal of 11517472 is 27471511.

It is a super-2 number, since 2×11517472² = 265304322541568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11517472.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12979 + ... + 13837.

It is an arithmetic number, because the mean of its divisors is an integer number (948150).

Almost surely, 2^11517472 is an apocalyptic number.

It is an amenable number.

11517472 is a deficient number, since it is larger than the sum of its proper divisors (11238128).

11517472 is an equidigital number, since it uses as much as digits as its factorization.

11517472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288 (or 1280 counting only the distinct ones).

The product of its digits is 1960, while the sum is 28.

The square root of 11517472 is about 3393.7401196910. The cubic root of 11517472 is about 225.8321253126.

Adding to 11517472 its reverse (27471511), we get a palindrome (38988983).

The spelling of 11517472 in words is "eleven million, five hundred seventeen thousand, four hundred seventy-two".