1889398 has 16 divisors (see below), whose sum is σ = 3409920. Its totient is φ = 767016.

The previous prime is 1889389. The next prime is 1889399. The reversal of 1889398 is 8939881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1889399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3286 + ... + 3817.

It is an arithmetic number, because the mean of its divisors is an integer number (213120).

2^1889398 is an apocalyptic number.

1889398 is a deficient number, since it is larger than the sum of its proper divisors (1520522).

1889398 is a wasteful number, since it uses less digits than its factorization.

1889398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7131.

The product of its digits is 124416, while the sum is 46.

The square root of 1889398 is about 1374.5537457662. The cubic root of 1889398 is about 123.6254305434.

The spelling of 1889398 in words is "one million, eight hundred eighty-nine thousand, three hundred ninety-eight".