1378305284 has 12 divisors (see below), whose sum is σ = 2414604108. Its totient is φ = 688418400.

The previous prime is 1378305283. The next prime is 1378305293. The reversal of 1378305284 is 4825038731.

It can be written as a sum of positive squares in 2 ways, for example, as 1003495684 + 374809600 = 31678^2 + 19360^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1378305283) 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, 179327 + ... + 186854.

It is an arithmetic number, because the mean of its divisors is an integer number (201217009).

Almost surely, 2^1378305284 is an apocalyptic number.

It is an amenable number.

1378305284 is a deficient number, since it is larger than the sum of its proper divisors (1036298824).

1378305284 is a wasteful number, since it uses less digits than its factorization.

1378305284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367126 (or 367124 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 1378305284 is about 37125.5341241039. The cubic root of 1378305284 is about 1112.8803487438.

The spelling of 1378305284 in words is "one billion, three hundred seventy-eight million, three hundred five thousand, two hundred eighty-four".