11720208 has 80 divisors (see below), whose sum is σ = 32783616. Its totient is φ = 3594240.

The previous prime is 11720197. The next prime is 11720251. The reversal of 11720208 is 80202711.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43113 + ... + 43383.

Almost surely, 2^11720208 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 11720208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16391808).

11720208 is an abundant number, since it is smaller than the sum of its proper divisors (21063408).

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

11720208 is a wasteful number, since it uses less digits than its factorization.

11720208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 11720208 is about 3423.4789323143. The cubic root of 11720208 is about 227.1494936665.

Adding to 11720208 its reverse (80202711), we get a palindrome (91922919).

The spelling of 11720208 in words is "eleven million, seven hundred twenty thousand, two hundred eight".