1381979304 has 48 divisors (see below), whose sum is σ = 3844026420. Its totient is φ = 448208640.

The previous prime is 1381979167. The next prime is 1381979323. The reversal of 1381979304 is 4039791831.

It can be written as a sum of positive squares in 2 ways, for example, as 949256100 + 432723204 = 30810^2 + 20802^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1381979304.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 256717 + ... + 262044.

Almost surely, 2^1381979304 is an apocalyptic number.

It is an amenable number.

1381979304 is an abundant number, since it is smaller than the sum of its proper divisors (2462047116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1381979304 is a wasteful number, since it uses less digits than its factorization.

1381979304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518810 (or 518803 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 1381979304 is about 37174.9822326790. The cubic root of 1381979304 is about 1113.8683052538.

The spelling of 1381979304 in words is "one billion, three hundred eighty-one million, nine hundred seventy-nine thousand, three hundred four".