1443980 has 48 divisors (see below), whose sum is σ = 3338496. Its totient is φ = 522240.

The previous prime is 1443977. The next prime is 1443989. The reversal of 1443980 is 893441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1443989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10472 + ... + 10608.

It is an arithmetic number, because the mean of its divisors is an integer number (69552).

2^1443980 is an apocalyptic number.

1443980 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 1443980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1669248).

1443980 is an abundant number, since it is smaller than the sum of its proper divisors (1894516).

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

1443980 is a wasteful number, since it uses less digits than its factorization.

1443980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1443980 is about 1201.6571890519. The cubic root of 1443980 is about 113.0282645249.

The spelling of 1443980 in words is "one million, four hundred forty-three thousand, nine hundred eighty".