11519816 has 32 divisors (see below), whose sum is σ = 26930880. Its totient is φ = 4488000.

The previous prime is 11519813. The next prime is 11519843. The reversal of 11519816 is 61891511.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (11519813) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8735 + ... + 9966.

It is an arithmetic number, because the mean of its divisors is an integer number (841590).

Almost surely, 2^11519816 is an apocalyptic number.

It is an amenable number.

11519816 is an abundant number, since it is smaller than the sum of its proper divisors (15411064).

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

11519816 is a wasteful number, since it uses less digits than its factorization.

11519816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18725 (or 18721 counting only the distinct ones).

The product of its digits is 2160, while the sum is 32.

The square root of 11519816 is about 3394.0854438272. The cubic root of 11519816 is about 225.8474444901.

The spelling of 11519816 in words is "eleven million, five hundred nineteen thousand, eight hundred sixteen".