1344645 has 12 divisors (see below), whose sum is σ = 2330796. Its totient is φ = 717120.

The previous prime is 1344641. The next prime is 1344647. The reversal of 1344645 is 5464431.

1344645 is a `hidden beast` number, since 13 + 4 + 4 + 645 = 666.

1344645 is nontrivially palindromic in base 4.

It can be written as a sum of positive squares in 2 ways, for example, as 298116 + 1046529 = 546^2 + 1023^2 .

It is not a de Polignac number, because 1344645 - 2² = 1344641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344641) 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 11 ways as a sum of consecutive naturals, for example, 14896 + ... + 14985.

It is an arithmetic number, because the mean of its divisors is an integer number (194233).

2^1344645 is an apocalyptic number.

1344645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1344645 is a deficient number, since it is larger than the sum of its proper divisors (986151).

1344645 is a wasteful number, since it uses less digits than its factorization.

1344645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29892 (or 29889 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 1344645 is about 1159.5882890061. The cubic root of 1344645 is about 110.3746180622.

The spelling of 1344645 in words is "one million, three hundred forty-four thousand, six hundred forty-five".