1889485 has 16 divisors (see below), whose sum is σ = 2504880. Its totient is φ = 1359360.

The previous prime is 1889483. The next prime is 1889491. The reversal of 1889485 is 5849881.

It can be written as a sum of positive squares in 8 ways, for example, as 885481 + 1004004 = 941^2 + 1002^2 .

It is not a de Polignac number, because 1889485 - 2¹ = 1889483 is a prime.

Its product of digits (92160) is a multiple of the sum of its prime divisors (768).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1889483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2311 + ... + 3019.

It is an arithmetic number, because the mean of its divisors is an integer number (156555).

2^1889485 is an apocalyptic number.

It is an amenable number.

1889485 is a deficient number, since it is larger than the sum of its proper divisors (615395).

1889485 is a wasteful number, since it uses less digits than its factorization.

1889485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768.

The product of its digits is 92160, while the sum is 43.

The square root of 1889485 is about 1374.5853920364. The cubic root of 1889485 is about 123.6273280168.

The spelling of 1889485 in words is "one million, eight hundred eighty-nine thousand, four hundred eighty-five".