1109908608 has 64 divisors (see below), whose sum is σ = 3076401600. Its totient is φ = 353881088.

The previous prime is 1109908589. The next prime is 1109908609. The reversal of 1109908608 is 8068099011.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1109908608² = 2463794236224995328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1109908608.

It is not an unprimeable number, because it can be changed into a prime (1109908609) 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, 54003 + ... + 71666.

It is an arithmetic number, because the mean of its divisors is an integer number (48068775).

Almost surely, 2^1109908608 is an apocalyptic number.

It is an amenable number.

1109908608 is an abundant number, since it is smaller than the sum of its proper divisors (1966492992).

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

1109908608 is a wasteful number, since it uses less digits than its factorization.

1109908608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125709 (or 125697 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 1109908608 is about 33315.2909037277. The cubic root of 1109908608 is about 1035.3703881016.

The spelling of 1109908608 in words is "one billion, one hundred nine million, nine hundred eight thousand, six hundred eight".