1344705 has 16 divisors (see below), whose sum is σ = 2169024. Its totient is φ = 711360.

The previous prime is 1344671. The next prime is 1344709. The reversal of 1344705 is 5074431.

It is not a de Polignac number, because 1344705 - 2⁶ = 1344641 is a prime.

It is a Curzon number.

1344705 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1344709) 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 15 ways as a sum of consecutive naturals, for example, 2070 + ... + 2640.

It is an arithmetic number, because the mean of its divisors is an integer number (135564).

2^1344705 is an apocalyptic number.

1344705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1344705 is a deficient number, since it is larger than the sum of its proper divisors (824319).

1344705 is a wasteful number, since it uses less digits than its factorization.

1344705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 1344705 is about 1159.6141599687. The cubic root of 1344705 is about 110.3762597294.

The spelling of 1344705 in words is "one million, three hundred forty-four thousand, seven hundred five".