11491648 has 56 divisors (see below), whose sum is σ = 26407872. Its totient is φ = 4859904.

The previous prime is 11491633. The next prime is 11491661. The reversal of 11491648 is 84619411.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50511 + ... + 50737.

Almost surely, 2^11491648 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 11491648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13203936).

11491648 is an abundant number, since it is smaller than the sum of its proper divisors (14916224).

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

11491648 is a wasteful number, since it uses less digits than its factorization.

11491648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 349 counting only the distinct ones).

The product of its digits is 6912, while the sum is 34.

The square root of 11491648 is about 3389.9333326778. The cubic root of 11491648 is about 225.6632151873.

The spelling of 11491648 in words is "eleven million, four hundred ninety-one thousand, six hundred forty-eight".