11216940 has 96 divisors (see below), whose sum is σ = 38029824. Its totient is φ = 2411520.

The previous prime is 11216929. The next prime is 11216951. The reversal of 11216940 is 4961211.

It is an interprime number because it is at equal distance from previous prime (11216929) and next prime (11216951).

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 11216940.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6355 + ... + 7925.

It is an arithmetic number, because the mean of its divisors is an integer number (396144).

Almost surely, 2^11216940 is an apocalyptic number.

11216940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11216940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19014912).

11216940 is an abundant number, since it is smaller than the sum of its proper divisors (26812884).

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

11216940 is a wasteful number, since it uses less digits than its factorization.

11216940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607 (or 1605 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 11216940 is about 3349.1700464443. The cubic root of 11216940 is about 223.8505327284.

The spelling of 11216940 in words is "eleven million, two hundred sixteen thousand, nine hundred forty".