1344391 has 4 divisors (see below), whose sum is σ = 1353112. Its totient is φ = 1335672.

The previous prime is 1344389. The next prime is 1344401. The reversal of 1344391 is 1934431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1934431 = 31 ⋅62401.

It is a cyclic number.

It is not a de Polignac number, because 1344391 - 2¹ = 1344389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344311) 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, 4125 + ... + 4438.

It is an arithmetic number, because the mean of its divisors is an integer number (338278).

2^1344391 is an apocalyptic number.

1344391 is a deficient number, since it is larger than the sum of its proper divisors (8721).

1344391 is an equidigital number, since it uses as much as digits as its factorization.

1344391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8720.

The product of its digits is 1296, while the sum is 25.

The square root of 1344391 is about 1159.4787622031. The cubic root of 1344391 is about 110.3676677969.

The spelling of 1344391 in words is "one million, three hundred forty-four thousand, three hundred ninety-one".