1340063407 has 16 divisors (see below), whose sum is σ = 1463493600. Its totient is φ = 1225574784.

The previous prime is 1340063371. The next prime is 1340063411. The reversal of 1340063407 is 7043600431.

It is a de Polignac number, because none of the positive numbers 2^k-1340063407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340063507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195543 + ... + 202279.

It is an arithmetic number, because the mean of its divisors is an integer number (91468350).

Almost surely, 2^1340063407 is an apocalyptic number.

1340063407 is a deficient number, since it is larger than the sum of its proper divisors (123430193).

1340063407 is an frugal number, since it uses more digits than its factorization.

1340063407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6823 (or 6785 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 1340063407 is about 36606.8764988219. The cubic root of 1340063407 is about 1102.4911603681.

Adding to 1340063407 its reverse (7043600431), we get a palindrome (8383663838).

The spelling of 1340063407 in words is "one billion, three hundred forty million, sixty-three thousand, four hundred seven".