1998000600 has 96 divisors (see below), whose sum is σ = 6235650000. Its totient is φ = 529200640.

The previous prime is 1998000577. The next prime is 1998000661. The reversal of 1998000600 is 60008991.

It is a happy number.

It is a Cunningham number, because it is equal to 44699²-1.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78226 + ... + 100574.

Almost surely, 2^1998000600 is an apocalyptic number.

1998000600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1998000600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3117825000).

1998000600 is an abundant number, since it is smaller than the sum of its proper divisors (4237649400).

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

1998000600 is a wasteful number, since it uses less digits than its factorization.

1998000600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22517 (or 22508 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 1998000600 is about 44698.9999888141. Note that the first 4 decimals coincide. The cubic root of 1998000600 is about 1259.5010622187.

The spelling of 1998000600 in words is "one billion, nine hundred ninety-eight million, six hundred", and thus it is an aban number.