1000988808 has 32 divisors (see below), whose sum is σ = 2544890400. Its totient is φ = 328007168.

The previous prime is 1000988771. The next prime is 1000988809. The reversal of 1000988808 is 8088890001.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1000988808.

It is not an unprimeable number, because it can be changed into a prime (1000988809) 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, 352041 + ... + 354872.

It is an arithmetic number, because the mean of its divisors is an integer number (79527825).

Almost surely, 2^1000988808 is an apocalyptic number.

It is an amenable number.

1000988808 is an abundant number, since it is smaller than the sum of its proper divisors (1543901592).

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

1000988808 is a wasteful number, since it uses less digits than its factorization.

1000988808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706981 (or 706977 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 42.

The square root of 1000988808 is about 31638.4071659747. The cubic root of 1000988808 is about 1000.3294940884.

The spelling of 1000988808 in words is "one billion, nine hundred eighty-eight thousand, eight hundred eight".