1838894 has 4 divisors (see below), whose sum is σ = 2758344. Its totient is φ = 919446.

The previous prime is 1838869. The next prime is 1838909. The reversal of 1838894 is 4988381.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1838894² = 6763062286472, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459722 + ... + 459725.

It is an arithmetic number, because the mean of its divisors is an integer number (689586).

2^1838894 is an apocalyptic number.

1838894 is a deficient number, since it is larger than the sum of its proper divisors (919450).

1838894 is an equidigital number, since it uses as much as digits as its factorization.

1838894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919449.

The product of its digits is 55296, while the sum is 41.

The square root of 1838894 is about 1356.0582583355. The cubic root of 1838894 is about 122.5139564829.

The spelling of 1838894 in words is "one million, eight hundred thirty-eight thousand, eight hundred ninety-four".