1340420302 has 32 divisors (see below), whose sum is σ = 2194288992. Its totient is φ = 610412544.

The previous prime is 1340420269. The next prime is 1340420329. The reversal of 1340420302 is 2030240431.

It is a self number, because there is not a number n which added to its sum of digits gives 1340420302.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1151973 + ... + 1153135.

It is an arithmetic number, because the mean of its divisors is an integer number (68571531).

Almost surely, 2^1340420302 is an apocalyptic number.

1340420302 is a deficient number, since it is larger than the sum of its proper divisors (853868690).

1340420302 is a wasteful number, since it uses less digits than its factorization.

1340420302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1340420302 is about 36611.7508731828. The cubic root of 1340420302 is about 1102.5890260499.

Adding to 1340420302 its reverse (2030240431), we get a palindrome (3370660733).

The spelling of 1340420302 in words is "one billion, three hundred forty million, four hundred twenty thousand, three hundred two".