1340240003 has 8 divisors (see below), whose sum is σ = 1365499296. Its totient is φ = 1315216000.

The previous prime is 1340239997. The next prime is 1340240009. The reversal of 1340240003 is 3000420431.

It is an interprime number because it is at equal distance from previous prime (1340239997) and next prime (1340240009).

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 1340240003 - 2⁴ = 1340239987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340240009) 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, 47303 + ... + 70128.

It is an arithmetic number, because the mean of its divisors is an integer number (170687412).

Almost surely, 2^1340240003 is an apocalyptic number.

1340240003 is a deficient number, since it is larger than the sum of its proper divisors (25259293).

1340240003 is a wasteful number, since it uses less digits than its factorization.

1340240003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117645.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1340240003 is about 36609.2884798380. The cubic root of 1340240003 is about 1102.5395876729.

Adding to 1340240003 its reverse (3000420431), we get a palindrome (4340660434).

The spelling of 1340240003 in words is "one billion, three hundred forty million, two hundred forty thousand, three".