1894841 has 4 divisors (see below), whose sum is σ = 2040612. Its totient is φ = 1749072.

The previous prime is 1894817. The next prime is 1894853. The reversal of 1894841 is 1484981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1484981 = 619 ⋅2399.

It can be written as a sum of positive squares in 2 ways, for example, as 1092025 + 802816 = 1045^2 + 896^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1894841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1894811) 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 3 ways as a sum of consecutive naturals, for example, 72866 + ... + 72891.

It is an arithmetic number, because the mean of its divisors is an integer number (510153).

2^1894841 is an apocalyptic number.

It is an amenable number.

1894841 is a deficient number, since it is larger than the sum of its proper divisors (145771).

1894841 is a wasteful number, since it uses less digits than its factorization.

1894841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145770.

The product of its digits is 9216, while the sum is 35.

The square root of 1894841 is about 1376.5322371815. The cubic root of 1894841 is about 123.7440305933.

The spelling of 1894841 in words is "one million, eight hundred ninety-four thousand, eight hundred forty-one".