1380444812 has 12 divisors (see below), whose sum is σ = 2557883160. Its totient is φ = 649621056.

The previous prime is 1380444811. The next prime is 1380444833. The reversal of 1380444812 is 2184440831.

It is a hoax number, since the sum of its digits (35) 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 (1380444811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10150262 + ... + 10150397.

It is an arithmetic number, because the mean of its divisors is an integer number (213156930).

Almost surely, 2^1380444812 is an apocalyptic number.

It is an amenable number.

1380444812 is a deficient number, since it is larger than the sum of its proper divisors (1177438348).

1380444812 is a wasteful number, since it uses less digits than its factorization.

1380444812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20300680 (or 20300678 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 1380444812 is about 37154.3377279154. The cubic root of 1380444812 is about 1113.4558883179.

The spelling of 1380444812 in words is "one billion, three hundred eighty million, four hundred forty-four thousand, eight hundred twelve".