11499816 has 64 divisors (see below), whose sum is σ = 30481920. Its totient is φ = 3608000.

The previous prime is 11499811. The next prime is 11499821. The reversal of 11499816 is 61899411.

11499816 = 125² + 126² + ... + 331².

It is an interprime number because it is at equal distance from previous prime (11499811) and next prime (11499821).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11499811) 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 15 ways as a sum of consecutive naturals, for example, 45691 + ... + 45941.

It is an arithmetic number, because the mean of its divisors is an integer number (476280).

Almost surely, 2^11499816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11499816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15240960).

11499816 is an abundant number, since it is smaller than the sum of its proper divisors (18982104).

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

11499816 is a wasteful number, since it uses less digits than its factorization.

11499816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 362 counting only the distinct ones).

The product of its digits is 15552, while the sum is 39.

The square root of 11499816 is about 3391.1378621342. The cubic root of 11499816 is about 225.7166679386.

The spelling of 11499816 in words is "eleven million, four hundred ninety-nine thousand, eight hundred sixteen".