1340544014 has 4 divisors (see below), whose sum is σ = 2010816024. Its totient is φ = 670272006.

The previous prime is 1340544001. The next prime is 1340544017. The reversal of 1340544014 is 4104450431.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340544017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335136002 + ... + 335136005.

It is an arithmetic number, because the mean of its divisors is an integer number (502704006).

Almost surely, 2^1340544014 is an apocalyptic number.

1340544014 is a deficient number, since it is larger than the sum of its proper divisors (670272010).

1340544014 is an equidigital number, since it uses as much as digits as its factorization.

1340544014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670272009.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1340544014 is about 36613.4403464083. The cubic root of 1340544014 is about 1102.6229455843.

Adding to 1340544014 its reverse (4104450431), we get a palindrome (5444994445).

The spelling of 1340544014 in words is "one billion, three hundred forty million, five hundred forty-four thousand, fourteen".