1301440 has 84 divisors (see below), whose sum is σ = 3648456. Its totient is φ = 440832.

The previous prime is 1301437. The next prime is 1301453. The reversal of 1301440 is 441031.

It is a self number, because there is not a number n which added to its sum of digits gives 1301440.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 15639 + ... + 15721.

It is an arithmetic number, because the mean of its divisors is an integer number (43434).

2^1301440 is an apocalyptic number.

1301440 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 1301440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1824228).

1301440 is an abundant number, since it is smaller than the sum of its proper divisors (2347016).

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

1301440 is an equidigital number, since it uses as much as digits as its factorization.

1301440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1301440 is about 1140.8067320979. The cubic root of 1301440 is about 109.1795710195.

Adding to 1301440 its reverse (441031), we get a palindrome (1742471).

The spelling of 1301440 in words is "one million, three hundred one thousand, four hundred forty".