1838841 has 4 divisors (see below), whose sum is σ = 2451792. Its totient is φ = 1225892.

The previous prime is 1838819. The next prime is 1838843. The reversal of 1838841 is 1488381.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1488381 = 3 ⋅496127.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1838841 is a prime.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1838843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306471 + ... + 306476.

It is an arithmetic number, because the mean of its divisors is an integer number (612948).

2^1838841 is an apocalyptic number.

It is an amenable number.

1838841 is a deficient number, since it is larger than the sum of its proper divisors (612951).

1838841 is an equidigital number, since it uses as much as digits as its factorization.

1838841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612950.

The product of its digits is 6144, while the sum is 33.

The square root of 1838841 is about 1356.0387162614. The cubic root of 1838841 is about 122.5127794526.

The spelling of 1838841 in words is "one million, eight hundred thirty-eight thousand, eight hundred forty-one".