1340460 has 72 divisors (see below), whose sum is σ = 4442256. Its totient is φ = 324480.

The previous prime is 1340459. The next prime is 1340477. The reversal of 1340460 is 640431.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1642 + ... + 2318.

It is an arithmetic number, because the mean of its divisors is an integer number (61698).

2^1340460 is an apocalyptic number.

1340460 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 1340460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2221128).

1340460 is an abundant number, since it is smaller than the sum of its proper divisors (3101796).

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

1340460 is a wasteful number, since it uses less digits than its factorization.

1340460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703 (or 698 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1340460 is about 1157.7823629681. The cubic root of 1340460 is about 110.2599910732.

Adding to 1340460 its reverse (640431), we get a palindrome (1980891).

The spelling of 1340460 in words is "one million, three hundred forty thousand, four hundred sixty".