1442144 has 48 divisors (see below), whose sum is σ = 3293136. Its totient is φ = 614400.

The previous prime is 1442143. The next prime is 1442159. The reversal of 1442144 is 4412441.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442143) 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, 5864 + ... + 6104.

It is an arithmetic number, because the mean of its divisors is an integer number (68607).

2^1442144 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 1442144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1646568).

1442144 is an abundant number, since it is smaller than the sum of its proper divisors (1850992).

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

1442144 is a wasteful number, since it uses less digits than its factorization.

1442144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 271 counting only the distinct ones).

The product of its digits is 512, while the sum is 20.

The square root of 1442144 is about 1200.8930010621. The cubic root of 1442144 is about 112.9803395978.

Adding to 1442144 its reverse (4412441), we get a palindrome (5854585).

The spelling of 1442144 in words is "one million, four hundred forty-two thousand, one hundred forty-four".