12081744 has 40 divisors (see below), whose sum is σ = 34680320. Its totient is φ = 4027104.

The previous prime is 12081743. The next prime is 12081761. The reversal of 12081744 is 44718021.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12081743) 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, 13552 + ... + 14415.

It is an arithmetic number, because the mean of its divisors is an integer number (867008).

Almost surely, 2^12081744 is an apocalyptic number.

It is an amenable number.

12081744 is an abundant number, since it is smaller than the sum of its proper divisors (22598576).

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

12081744 is a wasteful number, since it uses less digits than its factorization.

12081744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27984 (or 27972 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 12081744 is about 3475.8803201491. The cubic root of 12081744 is about 229.4615254397.

Adding to 12081744 its reverse (44718021), we get a palindrome (56799765).

The spelling of 12081744 in words is "twelve million, eighty-one thousand, seven hundred forty-four".