1340579 has 4 divisors (see below), whose sum is σ = 1345176. Its totient is φ = 1335984.

The previous prime is 1340561. The next prime is 1340587. The reversal of 1340579 is 9750431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9750431 = 113 ⋅86287.

It is a cyclic number.

It is not a de Polignac number, because 1340579 - 2⁸ = 1340323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1829 + ... + 2454.

It is an arithmetic number, because the mean of its divisors is an integer number (336294).

2^1340579 is an apocalyptic number.

1340579 is a deficient number, since it is larger than the sum of its proper divisors (4597).

1340579 is an equidigital number, since it uses as much as digits as its factorization.

1340579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4596.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 1340579 is about 1157.8337531788. The cubic root of 1340579 is about 110.2632537718.

The spelling of 1340579 in words is "one million, three hundred forty thousand, five hundred seventy-nine".