1344021 has 24 divisors (see below), whose sum is σ = 2145024. Its totient is φ = 745920.

The previous prime is 1344017. The next prime is 1344029. The reversal of 1344021 is 1204431.

It is not a de Polignac number, because 1344021 - 2² = 1344017 is a prime.

1344021 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344029) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 5916 + ... + 6138.

It is an arithmetic number, because the mean of its divisors is an integer number (89376).

2^1344021 is an apocalyptic number.

It is an amenable number.

1344021 is a deficient number, since it is larger than the sum of its proper divisors (801003).

1344021 is a wasteful number, since it uses less digits than its factorization.

1344021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1344021 is about 1159.3191967702. The cubic root of 1344021 is about 110.3575418281.

Adding to 1344021 its reverse (1204431), we get a palindrome (2548452).

The spelling of 1344021 in words is "one million, three hundred forty-four thousand, twenty-one".