1998600 has 48 divisors (see below), whose sum is σ = 6197520. Its totient is φ = 532800.

The previous prime is 1998589. The next prime is 1998611. The reversal of 1998600 is 68991.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1998589) and next prime (1998611).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1066 + ... + 2265.

It is an arithmetic number, because the mean of its divisors is an integer number (129115).

2^1998600 is an apocalyptic number.

1998600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1998600 is an abundant number, since it is smaller than the sum of its proper divisors (4198920).

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

1998600 is a wasteful number, since it uses less digits than its factorization.

1998600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350 (or 3341 counting only the distinct ones).

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

The square root of 1998600 is about 1413.7185009754. The cubic root of 1998600 is about 125.9626999694.

The spelling of 1998600 in words is "one million, nine hundred ninety-eight thousand, six hundred".