1998576 has 30 divisors (see below), whose sum is σ = 5593640. Its totient is φ = 666144.

The previous prime is 1998569. The next prime is 1998587. The reversal of 1998576 is 6758991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6796 + ... + 7083.

2^1998576 is an apocalyptic number.

1998576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1998576 is an abundant number, since it is smaller than the sum of its proper divisors (3595064).

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

1998576 is a wasteful number, since it uses less digits than its factorization.

1998576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13893 (or 13884 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The square root of 1998576 is about 1413.7100126971. The cubic root of 1998576 is about 125.9621957637.

The spelling of 1998576 in words is "one million, nine hundred ninety-eight thousand, five hundred seventy-six".