1320198 has 32 divisors (see below), whose sum is σ = 2927232. Its totient is φ = 393600.

The previous prime is 1320191. The next prime is 1320199. The reversal of 1320198 is 8910231.

1320198 is a modest number, since divided by 198 gives 132 as remainder.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5358 + ... + 5598.

It is an arithmetic number, because the mean of its divisors is an integer number (91476).

2^1320198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1463616).

1320198 is an abundant number, since it is smaller than the sum of its proper divisors (1607034).

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

1320198 is a wasteful number, since it uses less digits than its factorization.

1320198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1320198 is about 1148.9986945162. The cubic root of 1320198 is about 109.7016155810.

The spelling of 1320198 in words is "one million, three hundred twenty thousand, one hundred ninety-eight".