1343280 has 80 divisors (see below), whose sum is σ = 4330080. Its totient is φ = 344064.

The previous prime is 1343263. The next prime is 1343299. The reversal of 1343280 is 823431.

It is a happy number.

It is a Cunningham number, because it is equal to 1159²-1.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6864 + ... + 7056.

It is an arithmetic number, because the mean of its divisors is an integer number (54126).

2^1343280 is an apocalyptic number.

1343280 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 1343280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2165040).

1343280 is an abundant number, since it is smaller than the sum of its proper divisors (2986800).

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

1343280 is a wasteful number, since it uses less digits than its factorization.

1343280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1343280 is about 1158.9995685935. Note that the first 3 decimals coincide. The cubic root of 1343280 is about 110.3372569339.

The spelling of 1343280 in words is "one million, three hundred forty-three thousand, two hundred eighty".