11001984 has 64 divisors (see below), whose sum is σ = 33407040. Its totient is φ = 3142656.

The previous prime is 11001983. The next prime is 11002001. The reversal of 11001984 is 48910011.

It is a tau number, because it is divible by the number of its divisors (64).

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

It is not an unprimeable number, because it can be changed into a prime (11001983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642 + ... + 4734.

It is an arithmetic number, because the mean of its divisors is an integer number (521985).

Almost surely, 2^11001984 is an apocalyptic number.

11001984 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 11001984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16703520).

11001984 is an abundant number, since it is smaller than the sum of its proper divisors (22405056).

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

11001984 is an equidigital number, since it uses as much as digits as its factorization.

11001984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4117 (or 4105 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 11001984 is about 3316.9238761238. The cubic root of 11001984 is about 222.4113790910.

Adding to 11001984 its reverse (48910011), we get a palindrome (59911995).

The spelling of 11001984 in words is "eleven million, one thousand, nine hundred eighty-four".