11819616 has 24 divisors (see below), whose sum is σ = 31026744. Its totient is φ = 3939840.

The previous prime is 11819611. The next prime is 11819623. The reversal of 11819616 is 61691811.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11819611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61465 + ... + 61656.

It is an arithmetic number, because the mean of its divisors is an integer number (1292781).

Almost surely, 2^11819616 is an apocalyptic number.

11819616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11819616 is an abundant number, since it is smaller than the sum of its proper divisors (19207128).

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

11819616 is a wasteful number, since it uses less digits than its factorization.

11819616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123134 (or 123126 counting only the distinct ones).

The product of its digits is 2592, while the sum is 33.

The square root of 11819616 is about 3437.9668410268. The cubic root of 11819616 is about 227.7898957045.

The spelling of 11819616 in words is "eleven million, eight hundred nineteen thousand, six hundred sixteen".