1380856100 has 36 divisors (see below), whose sum is σ = 3226957524. Its totient is φ = 509854080.

The previous prime is 1380856073. The next prime is 1380856109. The reversal of 1380856100 is 16580831.

1380856100 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 164660224 + 1216195876 = 12832^2 + 34874^2 .

It is not an unprimeable number, because it can be changed into a prime (1380856109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 529799 + ... + 532398.

It is an arithmetic number, because the mean of its divisors is an integer number (89637709).

Almost surely, 2^1380856100 is an apocalyptic number.

1380856100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1380856100 is an abundant number, since it is smaller than the sum of its proper divisors (1846101424).

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

1380856100 is a wasteful number, since it uses less digits than its factorization.

1380856100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062224 (or 1062217 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 1380856100 is about 37159.8721741612. The cubic root of 1380856100 is about 1113.5664578890.

The spelling of 1380856100 in words is "one billion, three hundred eighty million, eight hundred fifty-six thousand, one hundred".