1378340356 has 12 divisors (see below), whose sum is σ = 2419954768. Its totient is φ = 686924712.

The previous prime is 1378340347. The next prime is 1378340387. The reversal of 1378340356 is 6530438731.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559986 + ... + 562441.

Almost surely, 2^1378340356 is an apocalyptic number.

It is an amenable number.

1378340356 is a deficient number, since it is larger than the sum of its proper divisors (1041614412).

1378340356 is a wasteful number, since it uses less digits than its factorization.

1378340356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122738 (or 1122736 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 1378340356 is about 37126.0064644718. The cubic root of 1378340356 is about 1112.8897880190.

The spelling of 1378340356 in words is "one billion, three hundred seventy-eight million, three hundred forty thousand, three hundred fifty-six".