1998350 has 24 divisors (see below), whose sum is σ = 3937248. Its totient is φ = 752000.

The previous prime is 1998349. The next prime is 1998371. The reversal of 1998350 is 538991.

It is a self number, because there is not a number n which added to its sum of digits gives 1998350.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 326 + ... + 2025.

It is an arithmetic number, because the mean of its divisors is an integer number (164052).

2^1998350 is an apocalyptic number.

1998350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1998350 is a deficient number, since it is larger than the sum of its proper divisors (1938898).

1998350 is a wasteful number, since it uses less digits than its factorization.

1998350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380 (or 2375 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 1998350 is about 1413.6300789103. The cubic root of 1998350 is about 125.9574476281.

The spelling of 1998350 in words is "one million, nine hundred ninety-eight thousand, three hundred fifty".