1198912 has 56 divisors (see below), whose sum is σ = 2816352. Its totient is φ = 499200.

The previous prime is 1198903. The next prime is 1198927. The reversal of 1198912 is 2198911.

1198912 is nontrivially palindromic in base 12.

It is a zygodrome in base 8.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9087 + ... + 9217.

It is an arithmetic number, because the mean of its divisors is an integer number (50292).

2^1198912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1198912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1408176).

1198912 is an abundant number, since it is smaller than the sum of its proper divisors (1617440).

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

1198912 is a wasteful number, since it uses less digits than its factorization.

1198912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 157 counting only the distinct ones).

The product of its digits is 1296, while the sum is 31.

The square root of 1198912 is about 1094.9484006107. The cubic root of 1198912 is about 106.2337313038.

Subtracting 1198912 from its reverse (2198911), we obtain a palindrome (999999).

The spelling of 1198912 in words is "one million, one hundred ninety-eight thousand, nine hundred twelve".