1898841 has 16 divisors (see below), whose sum is σ = 3046400. Its totient is φ = 1027728.

The previous prime is 1898807. The next prime is 1898861. The reversal of 1898841 is 1488981.

It is a happy number.

It is not a de Polignac number, because 1898841 - 2¹⁴ = 1882457 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1898841.

It is not an unprimeable number, because it can be changed into a prime (1898801) 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 15 ways as a sum of consecutive naturals, for example, 1981 + ... + 2778.

It is an arithmetic number, because the mean of its divisors is an integer number (190400).

2^1898841 is an apocalyptic number.

It is an amenable number.

1898841 is a deficient number, since it is larger than the sum of its proper divisors (1147559).

1898841 is a wasteful number, since it uses less digits than its factorization.

1898841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4788.

The product of its digits is 18432, while the sum is 39.

The square root of 1898841 is about 1377.9843975895. The cubic root of 1898841 is about 123.8310437398.

The spelling of 1898841 in words is "one million, eight hundred ninety-eight thousand, eight hundred forty-one".