1804444 has 12 divisors (see below), whose sum is σ = 3205384. Its totient is φ = 888624.

The previous prime is 1804433. The next prime is 1804447. The reversal of 1804444 is 4444081.

It is a happy number.

1804444 is a modest number, since divided by 4444 gives 180 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804447) 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, 3099 + ... + 3634.

2^1804444 is an apocalyptic number.

It is an amenable number.

1804444 is a deficient number, since it is larger than the sum of its proper divisors (1400940).

1804444 is a wasteful number, since it uses less digits than its factorization.

1804444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6804 (or 6802 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 1804444 is about 1343.2959465434. The cubic root of 1804444 is about 121.7440661782.

It can be divided in two parts, 180 and 4444, that added together give a square (4624 = 68²).

The spelling of 1804444 in words is "one million, eight hundred four thousand, four hundred forty-four".