1198404 has 18 divisors (see below), whose sum is σ = 3029390. Its totient is φ = 399456.

The previous prime is 1198403. The next prime is 1198411. The reversal of 1198404 is 4048911.

It can be written as a sum of positive squares in only one way, i.e., 705600 + 492804 = 840^2 + 702^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×1198404³ = 5163343337736729792, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1198403) 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 5 ways as a sum of consecutive naturals, for example, 16609 + ... + 16680.

2^1198404 is an apocalyptic number.

It is an amenable number.

1198404 is an abundant number, since it is smaller than the sum of its proper divisors (1830986).

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

1198404 is a wasteful number, since it uses less digits than its factorization.

1198404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33299 (or 33294 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1198404 is about 1094.7164016310. The cubic root of 1198404 is about 106.2187248203.

The spelling of 1198404 in words is "one million, one hundred ninety-eight thousand, four hundred four".