1244560 has 40 divisors (see below), whose sum is σ = 2964096. Its totient is φ = 485760.

The previous prime is 1244543. The next prime is 1244567. The reversal of 1244560 is 654421.

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

It is not an unprimeable number, because it can be changed into a prime (1244567) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3595 + ... + 3925.

2^1244560 is an apocalyptic number.

1244560 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 1244560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1482048).

1244560 is an abundant number, since it is smaller than the sum of its proper divisors (1719536).

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

1244560 is a wasteful number, since it uses less digits than its factorization.

1244560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1244560 is about 1115.5984940829. The cubic root of 1244560 is about 107.5652389291.

Adding to 1244560 its reverse (654421), we get a palindrome (1898981).

The spelling of 1244560 in words is "one million, two hundred forty-four thousand, five hundred sixty".