1340045 has 8 divisors (see below), whose sum is σ = 1837824. Its totient is φ = 918864.

The previous prime is 1340041. The next prime is 1340047. The reversal of 1340045 is 5400431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1340045 - 2² = 1340041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19109 + ... + 19178.

It is an arithmetic number, because the mean of its divisors is an integer number (229728).

2^1340045 is an apocalyptic number.

It is an amenable number.

1340045 is a deficient number, since it is larger than the sum of its proper divisors (497779).

1340045 is an equidigital number, since it uses as much as digits as its factorization.

1340045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38299.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1340045 is about 1157.6031271554. The cubic root of 1340045 is about 110.2486112436.

Adding to 1340045 its reverse (5400431), we get a palindrome (6740476).

The spelling of 1340045 in words is "one million, three hundred forty thousand, forty-five".