11981024 has 48 divisors (see below), whose sum is σ = 26063856. Its totient is φ = 5376000.

The previous prime is 11981023. The next prime is 11981027. The reversal of 11981024 is 42018911.

It is a junction number, because it is equal to n+sod(n) for n = 11980984 and 11981002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11981023) by changing a digit.

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, 35384 + ... + 35720.

It is an arithmetic number, because the mean of its divisors is an integer number (542997).

Almost surely, 2^11981024 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 11981024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13031928).

11981024 is an abundant number, since it is smaller than the sum of its proper divisors (14082832).

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

11981024 is a wasteful number, since it uses less digits than its factorization.

11981024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 11981024 is about 3461.3615818056. The cubic root of 11981024 is about 228.8221065246.

Adding to 11981024 its reverse (42018911), we get a palindrome (53999935).

It can be divided in two parts, 1198 and 1024, that added together give a palindrome (2222).

The spelling of 11981024 in words is "eleven million, nine hundred eighty-one thousand, twenty-four".