1380730881 has 8 divisors (see below), whose sum is σ = 1841676480. Its totient is φ = 920136272.

The previous prime is 1380730867. The next prime is 1380730909. The reversal of 1380730881 is 1880370831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1380730881 - 2¹³ = 1380722689 is a prime.

It is a super-2 number, since 2×1380730881² = 3812835531494072322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1380730811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78426 + ... + 94403.

It is an arithmetic number, because the mean of its divisors is an integer number (230209560).

Almost surely, 2^1380730881 is an apocalyptic number.

It is an amenable number.

1380730881 is a deficient number, since it is larger than the sum of its proper divisors (460945599).

1380730881 is a wasteful number, since it uses less digits than its factorization.

1380730881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175495.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 1380730881 is about 37158.1872674112. The cubic root of 1380730881 is about 1113.5327966713.

The spelling of 1380730881 in words is "one billion, three hundred eighty million, seven hundred thirty thousand, eight hundred eighty-one".