1340305004 has 6 divisors (see below), whose sum is σ = 2345533764. Its totient is φ = 670152500.

The previous prime is 1340304997. The next prime is 1340305009. The reversal of 1340305004 is 4005030431.

It is not an unprimeable number, because it can be changed into a prime (1340305009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167538122 + ... + 167538129.

It is an arithmetic number, because the mean of its divisors is an integer number (390922294).

Almost surely, 2^1340305004 is an apocalyptic number.

It is an amenable number.

1340305004 is a deficient number, since it is larger than the sum of its proper divisors (1005228760).

1340305004 is a wasteful number, since it uses less digits than its factorization.

1340305004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335076255 (or 335076253 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1340305004 is about 36610.1762355769. The cubic root of 1340305004 is about 1102.5574115992.

Adding to 1340305004 its reverse (4005030431), we get a palindrome (5345335435).

The spelling of 1340305004 in words is "one billion, three hundred forty million, three hundred five thousand, four".