1204144 has 40 divisors (see below), whose sum is σ = 2611440. Its totient is φ = 534528.

The previous prime is 1204141. The next prime is 1204153. The reversal of 1204144 is 4414021.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1204141) 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, 5052 + ... + 5284.

It is an arithmetic number, because the mean of its divisors is an integer number (65286).

2^1204144 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 1204144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1305720).

1204144 is an abundant number, since it is smaller than the sum of its proper divisors (1407296).

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

1204144 is a wasteful number, since it uses less digits than its factorization.

1204144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1204144 is about 1097.3349534212. The cubic root of 1204144 is about 106.3880401881.

Adding to 1204144 its reverse (4414021), we get a palindrome (5618165).

The spelling of 1204144 in words is "one million, two hundred four thousand, one hundred forty-four".