1489517378 has 16 divisors (see below), whose sum is σ = 2267274240. Its totient is φ = 733773600.

The previous prime is 1489517347. The next prime is 1489517387. The reversal of 1489517378 is 8737159841.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297278 + ... + 302246.

It is an arithmetic number, because the mean of its divisors is an integer number (141704640).

Almost surely, 2^1489517378 is an apocalyptic number.

1489517378 is a deficient number, since it is larger than the sum of its proper divisors (777756862).

1489517378 is a wasteful number, since it uses less digits than its factorization.

1489517378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7153.

The product of its digits is 1693440, while the sum is 53.

The square root of 1489517378 is about 38594.2661285326. The cubic root of 1489517378 is about 1142.0414273359.

The spelling of 1489517378 in words is "one billion, four hundred eighty-nine million, five hundred seventeen thousand, three hundred seventy-eight".