1838444 has 6 divisors (see below), whose sum is σ = 3217284. Its totient is φ = 919220.

The previous prime is 1838429. The next prime is 1838453. The reversal of 1838444 is 4448381.

It is a super-2 number, since 2×1838444² = 6759752682272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1838444.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229802 + ... + 229809.

It is an arithmetic number, because the mean of its divisors is an integer number (536214).

2^1838444 is an apocalyptic number.

It is an amenable number.

1838444 is a deficient number, since it is larger than the sum of its proper divisors (1378840).

1838444 is a wasteful number, since it uses less digits than its factorization.

1838444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459615 (or 459613 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 1838444 is about 1355.8923261085. The cubic root of 1838444 is about 122.5039621098.

The spelling of 1838444 in words is "one million, eight hundred thirty-eight thousand, four hundred forty-four".