1544442 has 8 divisors (see below), whose sum is σ = 3088896. Its totient is φ = 514812.

The previous prime is 1544441. The next prime is 1544449. The reversal of 1544442 is 2444451.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1544442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1544441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128698 + ... + 128709.

It is an arithmetic number, because the mean of its divisors is an integer number (386112).

2^1544442 is an apocalyptic number.

1544442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1544442 is a wasteful number, since it uses less digits than its factorization.

1544442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257412.

The product of its digits is 2560, while the sum is 24.

The square root of 1544442 is about 1242.7558086768. The cubic root of 1544442 is about 115.5909592511.

Adding to 1544442 its reverse (2444451), we get a palindrome (3988893).

Subtracting 1544442 from its reverse (2444451), we obtain a palindrome (900009).

The spelling of 1544442 in words is "one million, five hundred forty-four thousand, four hundred forty-two".