1998552 has 16 divisors (see below), whose sum is σ = 4996440. Its totient is φ = 666176.

The previous prime is 1998541. The next prime is 1998559. The reversal of 1998552 is 2558991.

It is a self number, because there is not a number n which added to its sum of digits gives 1998552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1998559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41613 + ... + 41660.

2^1998552 is an apocalyptic number.

1998552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1998552 is an abundant number, since it is smaller than the sum of its proper divisors (2997888).

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

1998552 is a wasteful number, since it uses less digits than its factorization.

1998552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83282 (or 83278 counting only the distinct ones).

The product of its digits is 32400, while the sum is 39.

The square root of 1998552 is about 1413.7015243679. The cubic root of 1998552 is about 125.9616915539.

The spelling of 1998552 in words is "one million, nine hundred ninety-eight thousand, five hundred fifty-two".