1889868 has 12 divisors (see below), whose sum is σ = 4409720. Its totient is φ = 629952.

The previous prime is 1889831. The next prime is 1889957. The reversal of 1889868 is 8689881.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78733 + ... + 78756.

2^1889868 is an apocalyptic number.

It is an amenable number.

1889868 is an abundant number, since it is smaller than the sum of its proper divisors (2519852).

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

1889868 is a wasteful number, since it uses less digits than its factorization.

1889868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157496 (or 157494 counting only the distinct ones).

The product of its digits is 221184, while the sum is 48.

The square root of 1889868 is about 1374.7246997126. The cubic root of 1889868 is about 123.6356805693.

The spelling of 1889868 in words is "one million, eight hundred eighty-nine thousand, eight hundred sixty-eight".