1889055 has 32 divisors (see below), whose sum is σ = 3840000. Its totient is φ = 863136.

The previous prime is 1889053. The next prime is 1889077. The reversal of 1889055 is 5509881.

It is not a de Polignac number, because 1889055 - 2¹ = 1889053 is a prime.

1889055 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1889051) 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 31 ways as a sum of consecutive naturals, for example, 55 + ... + 1944.

It is an arithmetic number, because the mean of its divisors is an integer number (120000).

2^1889055 is an apocalyptic number.

1889055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1889055 is an abundant number, since it is smaller than the sum of its proper divisors (1950945).

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

1889055 is a wasteful number, since it uses less digits than its factorization.

1889055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020 (or 2014 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 1889055 is about 1374.4289723372. The cubic root of 1889055 is about 123.6179491324.

The spelling of 1889055 in words is "one million, eight hundred eighty-nine thousand, fifty-five".