1380985489 has 8 divisors (see below), whose sum is σ = 1535190272. Its totient is φ = 1233634320.

The previous prime is 1380985483. The next prime is 1380985511. The reversal of 1380985489 is 9845890831.

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 1380985489 - 2¹⁷ = 1380854417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1380985483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1712979 + ... + 1713784.

It is an arithmetic number, because the mean of its divisors is an integer number (191898784).

Almost surely, 2^1380985489 is an apocalyptic number.

It is an amenable number.

1380985489 is a deficient number, since it is larger than the sum of its proper divisors (154204783).

1380985489 is a wasteful number, since it uses less digits than its factorization.

1380985489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426807.

The product of its (nonzero) digits is 2488320, while the sum is 55.

The square root of 1380985489 is about 37161.6131108433. The cubic root of 1380985489 is about 1113.6012379433.

The spelling of 1380985489 in words is "one billion, three hundred eighty million, nine hundred eighty-five thousand, four hundred eighty-nine".