1340000001 has 24 divisors (see below), whose sum is σ = 1959050184. Its totient is φ = 882524160.

The previous prime is 1339999967. The next prime is 1340000003. The reversal of 1340000001 is 1000000431.

It can be written as a sum of positive squares in 4 ways, for example, as 48316401 + 1291683600 = 6951^2 + 35940^2 .

It is not a de Polignac number, because 1340000001 - 2⁶ = 1339999937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1340000003) 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 23 ways as a sum of consecutive naturals, for example, 663345 + ... + 665361.

It is an arithmetic number, because the mean of its divisors is an integer number (81627091).

Almost surely, 2^1340000001 is an apocalyptic number.

It is an amenable number.

1340000001 is a deficient number, since it is larger than the sum of its proper divisors (619050183).

1340000001 is a wasteful number, since it uses less digits than its factorization.

1340000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881 (or 2878 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1340000001 is about 36606.0104491052. The cubic root of 1340000001 is about 1102.4737717240.

Adding to 1340000001 its reverse (1000000431), we get a palindrome (2340000432).

The spelling of 1340000001 in words is "one billion, three hundred forty million, one", and thus it is an aban number.