1340043 has 8 divisors (see below), whose sum is σ = 1792656. Its totient is φ = 890400.

The previous prime is 1340041. The next prime is 1340047. The reversal of 1340043 is 3400431.

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

It is not a de Polignac number, because 1340043 - 2¹ = 1340041 is a prime.

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, 733 + ... + 1793.

It is an arithmetic number, because the mean of its divisors is an integer number (224082).

2^1340043 is an apocalyptic number.

1340043 is a deficient number, since it is larger than the sum of its proper divisors (452613).

1340043 is a wasteful number, since it uses less digits than its factorization.

1340043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1340043 is about 1157.6022633012. The cubic root of 1340043 is about 110.2485563953.

Adding to 1340043 its reverse (3400431), we get a palindrome (4740474).

The spelling of 1340043 in words is "one million, three hundred forty thousand, forty-three".