1421344 has 12 divisors (see below), whose sum is σ = 2798334. Its totient is φ = 710656.

The previous prime is 1421339. The next prime is 1421351. The reversal of 1421344 is 4431241.

It can be written as a sum of positive squares in only one way, i.e., 1411344 + 10000 = 1188^2 + 100^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22177 + ... + 22240.

2^1421344 is an apocalyptic number.

It is an amenable number.

1421344 is a deficient number, since it is larger than the sum of its proper divisors (1376990).

1421344 is an equidigital number, since it uses as much as digits as its factorization.

1421344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44427 (or 44419 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 1421344 is about 1192.2013252803. The cubic root of 1421344 is about 112.4345363998.

Adding to 1421344 its reverse (4431241), we get a palindrome (5852585).

The spelling of 1421344 in words is "one million, four hundred twenty-one thousand, three hundred forty-four".