1378263316 has 12 divisors (see below), whose sum is σ = 2516828832. Its totient is φ = 659169368.

The previous prime is 1378263311. The next prime is 1378263329. The reversal of 1378263316 is 6133628731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378263311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7490470 + ... + 7490653.

It is an arithmetic number, because the mean of its divisors is an integer number (209735736).

Almost surely, 2^1378263316 is an apocalyptic number.

It is an amenable number.

1378263316 is a deficient number, since it is larger than the sum of its proper divisors (1138565516).

1378263316 is a wasteful number, since it uses less digits than its factorization.

1378263316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14981150 (or 14981148 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 1378263316 is about 37124.9689023439. The cubic root of 1378263316 is about 1112.8690532693.

The spelling of 1378263316 in words is "one billion, three hundred seventy-eight million, two hundred sixty-three thousand, three hundred sixteen".