1340560 has 40 divisors (see below), whose sum is σ = 3359160. Its totient is φ = 494592.

The previous prime is 1340557. The next prime is 1340561. The reversal of 1340560 is 650431.

It can be written as a sum of positive squares in 4 ways, for example, as 112896 + 1227664 = 336^2 + 1108^2 .

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

It is a super-2 number, since 2×1340560² = 3594202227200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1340561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396 + ... + 1684.

It is an arithmetic number, because the mean of its divisors is an integer number (83979).

2^1340560 is an apocalyptic number.

1340560 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 1340560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1679580).

1340560 is an abundant number, since it is smaller than the sum of its proper divisors (2018600).

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

1340560 is a wasteful number, since it uses less digits than its factorization.

1340560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1340560 is about 1157.8255481721. The cubic root of 1340560 is about 110.2627328497.

Adding to 1340560 its reverse (650431), we get a palindrome (1990991).

The spelling of 1340560 in words is "one million, three hundred forty thousand, five hundred sixty".