1340304889 has 12 divisors (see below), whose sum is σ = 1700869968. Its totient is φ = 1044393000.

The previous prime is 1340304887. The next prime is 1340304899. The reversal of 1340304889 is 9884030431.

It is not a de Polignac number, because 1340304889 - 2¹ = 1340304887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1340304887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1242787 + ... + 1243864.

It is an arithmetic number, because the mean of its divisors is an integer number (141739164).

Almost surely, 2^1340304889 is an apocalyptic number.

It is an amenable number.

1340304889 is a deficient number, since it is larger than the sum of its proper divisors (360565079).

1340304889 is a wasteful number, since it uses less digits than its factorization.

1340304889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486676 (or 2486669 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 1340304889 is about 36610.1746649753. The cubic root of 1340304889 is about 1102.5573800656.

The spelling of 1340304889 in words is "one billion, three hundred forty million, three hundred four thousand, eight hundred eighty-nine".