1340142002 has 8 divisors (see below), whose sum is σ = 2015603436. Its totient is φ = 668274192.

The previous prime is 1340141993. The next prime is 1340142007. The reversal of 1340142002 is 2002410431.

It can be written as a sum of positive squares in 2 ways, for example, as 1184116921 + 156025081 = 34411^2 + 12491^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1340142007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897473 + ... + 898964.

Almost surely, 2^1340142002 is an apocalyptic number.

1340142002 is a deficient number, since it is larger than the sum of its proper divisors (675461434).

1340142002 is a wasteful number, since it uses less digits than its factorization.

1340142002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796812.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1340142002 is about 36607.9499835760. The cubic root of 1340142002 is about 1102.5127137260.

Adding to 1340142002 its reverse (2002410431), we get a palindrome (3342552433).

The spelling of 1340142002 in words is "one billion, three hundred forty million, one hundred forty-two thousand, two".