1898844 has 24 divisors (see below), whose sum is σ = 4488960. Its totient is φ = 624624.

The previous prime is 1898807. The next prime is 1898861. The reversal of 1898844 is 4488981.

It is a junction number, because it is equal to n+sod(n) for n = 1898796 and 1898805.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 54 + ... + 1949.

It is an arithmetic number, because the mean of its divisors is an integer number (187040).

2^1898844 is an apocalyptic number.

It is an amenable number.

1898844 is an abundant number, since it is smaller than the sum of its proper divisors (2590116).

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

1898844 is a wasteful number, since it uses less digits than its factorization.

1898844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089 (or 2087 counting only the distinct ones).

The product of its digits is 73728, while the sum is 42.

The square root of 1898844 is about 1377.9854861355. The cubic root of 1898844 is about 123.8311089538.

The spelling of 1898844 in words is "one million, eight hundred ninety-eight thousand, eight hundred forty-four".