1444864 has 44 divisors (see below), whose sum is σ = 3095064. Its totient is φ = 671744.

The previous prime is 1444823. The next prime is 1444873. The reversal of 1444864 is 4684441.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17367 + ... + 17449.

2^1444864 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 1444864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1547532).

1444864 is an abundant number, since it is smaller than the sum of its proper divisors (1650200).

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

1444864 is an equidigital number, since it uses as much as digits as its factorization.

1444864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 102 counting only the distinct ones).

The product of its digits is 12288, while the sum is 31.

The square root of 1444864 is about 1202.0249581435. The cubic root of 1444864 is about 113.0513250020.

The spelling of 1444864 in words is "one million, four hundred forty-four thousand, eight hundred sixty-four".