1340005 has 8 divisors (see below), whose sum is σ = 1615392. Its totient is φ = 1067088.

The previous prime is 1339993. The next prime is 1340011. The reversal of 1340005 is 5000431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1340005 - 2⁵ = 1339973 is a prime.

It is a super-2 number, since 2×1340005² = 3591226800050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 942 + ... + 1888.

It is an arithmetic number, because the mean of its divisors is an integer number (201924).

2^1340005 is an apocalyptic number.

It is an amenable number.

1340005 is a deficient number, since it is larger than the sum of its proper divisors (275387).

1340005 is an equidigital number, since it uses as much as digits as its factorization.

1340005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 1340005 is about 1157.5858499481. The cubic root of 1340005 is about 110.2475142684.

Adding to 1340005 its reverse (5000431), we get a palindrome (6340436).

The spelling of 1340005 in words is "one million, three hundred forty thousand, five".