1889198 has 8 divisors (see below), whose sum is σ = 2903040. Its totient is φ = 921520.

The previous prime is 1889191. The next prime is 1889201. The reversal of 1889198 is 8919881.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1889191) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11438 + ... + 11601.

It is an arithmetic number, because the mean of its divisors is an integer number (362880).

2^1889198 is an apocalyptic number.

1889198 is a deficient number, since it is larger than the sum of its proper divisors (1013842).

1889198 is a wasteful number, since it uses less digits than its factorization.

1889198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23082.

The product of its digits is 41472, while the sum is 44.

The square root of 1889198 is about 1374.4809929570. The cubic root of 1889198 is about 123.6210683147.

The spelling of 1889198 in words is "one million, eight hundred eighty-nine thousand, one hundred ninety-eight".