1441280 has 40 divisors (see below), whose sum is σ = 3461832. Its totient is φ = 575488.

The previous prime is 1441259. The next prime is 1441289. The reversal of 1441280 is 821441.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1441289) 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, 2279 + ... + 2841.

2^1441280 is an apocalyptic number.

1441280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1441280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1730916).

1441280 is an abundant number, since it is smaller than the sum of its proper divisors (2020552).

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

1441280 is an frugal number, since it uses more digits than its factorization.

1441280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1441280 is about 1200.5332148675. The cubic root of 1441280 is about 112.9577726156.

The spelling of 1441280 in words is "one million, four hundred forty-one thousand, two hundred eighty".