1099608489 has 48 divisors (see below), whose sum is σ = 1939425280. Its totient is φ = 586349280.

The previous prime is 1099608481. The next prime is 1099608511. The reversal of 1099608489 is 9848069901.

1099608489 is a `hidden beast` number, since 10 + 99 + 60 + 8 + 489 = 666.

It is not a de Polignac number, because 1099608489 - 2³ = 1099608481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1099608481) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 73344 + ... + 87054.

Almost surely, 2^1099608489 is an apocalyptic number.

1099608489 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1099608489 is a deficient number, since it is larger than the sum of its proper divisors (839816791).

1099608489 is a wasteful number, since it uses less digits than its factorization.

1099608489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13810 (or 13807 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 1099608489 is about 33160.3451278783. The cubic root of 1099608489 is about 1032.1576315237.

The spelling of 1099608489 in words is "one billion, ninety-nine million, six hundred eight thousand, four hundred eighty-nine".