12005448 has 128 divisors (see below), whose sum is σ = 38707200. Its totient is φ = 3015936.

The previous prime is 12005423. The next prime is 12005479. The reversal of 12005448 is 84450021.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50113 + ... + 50351.

It is an arithmetic number, because the mean of its divisors is an integer number (302400).

Almost surely, 2^12005448 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 12005448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19353600).

12005448 is an abundant number, since it is smaller than the sum of its proper divisors (26701752).

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

12005448 is a wasteful number, since it uses less digits than its factorization.

12005448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 12005448 is about 3464.8878769738. The cubic root of 12005448 is about 228.9774899532.

Adding to 12005448 its reverse (84450021), we get a palindrome (96455469).

The spelling of 12005448 in words is "twelve million, five thousand, four hundred forty-eight".