11662224 has 80 divisors (see below), whose sum is σ = 35057280. Its totient is φ = 3271680.

The previous prime is 11662223. The next prime is 11662229. The reversal of 11662224 is 42226611.

11662224 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 3415²-1.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

11662224 is strictly pandigital in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 11662194 and 11662203.

It is not an unprimeable number, because it can be changed into a prime (11662223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20212 + ... + 20780.

It is an arithmetic number, because the mean of its divisors is an integer number (438216).

Almost surely, 2^11662224 is an apocalyptic number.

11662224 is a gapful number since it is divisible by the number (14) 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 11662224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17528640).

11662224 is an abundant number, since it is smaller than the sum of its proper divisors (23395056).

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

11662224 is a wasteful number, since it uses less digits than its factorization.

11662224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648 (or 642 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 11662224 is about 3414.9998535871. Note that the first 3 decimals coincide. The cubic root of 11662224 is about 226.7742780070.

Adding to 11662224 its reverse (42226611), we get a palindrome (53888835).

The spelling of 11662224 in words is "eleven million, six hundred sixty-two thousand, two hundred twenty-four".