11009908 has 72 divisors (see below), whose sum is σ = 25137000. Its totient is φ = 4177152.

The previous prime is 11009881. The next prime is 11009927. The reversal of 11009908 is 80990011.

It can be written as a sum of positive squares in 4 ways, for example, as 784 + 11009124 = 28^2 + 3318^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73818 + ... + 73966.

It is an arithmetic number, because the mean of its divisors is an integer number (349125).

Almost surely, 2^11009908 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 11009908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12568500).

11009908 is an abundant number, since it is smaller than the sum of its proper divisors (14127092).

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

11009908 is a wasteful number, since it uses less digits than its factorization.

11009908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 11009908 is about 3318.1181413566. The cubic root of 11009908 is about 222.4647623362.

Adding to 11009908 its reverse (80990011), we get a palindrome (91999919).

The spelling of 11009908 in words is "eleven million, nine thousand, nine hundred eight".