1806448 has 30 divisors (see below), whose sum is σ = 4031736. Its totient is φ = 768096.

The previous prime is 1806421. The next prime is 1806461. The reversal of 1806448 is 8446081.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14161 + ... + 14287.

2^1806448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1806448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2015868).

1806448 is an abundant number, since it is smaller than the sum of its proper divisors (2225288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1806448 is an equidigital number, since it uses as much as digits as its factorization.

1806448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 1806448 is about 1344.0416660208. The cubic root of 1806448 is about 121.7891188085.

The spelling of 1806448 in words is "one million, eight hundred six thousand, four hundred forty-eight".