1998676608 has 32 divisors (see below), whose sum is σ = 5308985760. Its totient is φ = 666225408.

The previous prime is 1998676573. The next prime is 1998676637. The reversal of 1998676608 is 8066768991.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2602060 + ... + 2602827.

It is an arithmetic number, because the mean of its divisors is an integer number (165905805).

Almost surely, 2^1998676608 is an apocalyptic number.

It is an amenable number.

1998676608 is an abundant number, since it is smaller than the sum of its proper divisors (3310309152).

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

1998676608 is an equidigital number, since it uses as much as digits as its factorization.

1998676608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5204904 (or 5204892 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 60.

The square root of 1998676608 is about 44706.5611292123. The cubic root of 1998676608 is about 1259.6430936720.

The spelling of 1998676608 in words is "one billion, nine hundred ninety-eight million, six hundred seventy-six thousand, six hundred eight".