1380730880 has 48 divisors (see below), whose sum is σ = 3312969660. Its totient is φ = 552288256.

The previous prime is 1380730867. The next prime is 1380730909. The reversal of 1380730880 is 880370831.

It can be written as a sum of positive squares in 2 ways, for example, as 1347183616 + 33547264 = 36704^2 + 5792^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57179 + ... + 77658.

Almost surely, 2^1380730880 is an apocalyptic number.

1380730880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1380730880 is an abundant number, since it is smaller than the sum of its proper divisors (1932238780).

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

1380730880 is an equidigital number, since it uses as much as digits as its factorization.

1380730880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134864 (or 134844 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 1380730880 is about 37158.1872539552. The cubic root of 1380730880 is about 1113.5327964025.

The spelling of 1380730880 in words is "one billion, three hundred eighty million, seven hundred thirty thousand, eight hundred eighty".