1340555 has 8 divisors (see below), whose sum is σ = 1678752. Its totient is φ = 1025728.

The previous prime is 1340527. The next prime is 1340557. The reversal of 1340555 is 5550431.

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 1340555 - 2⁶ = 1340491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1340555.

It is not an unprimeable number, because it can be changed into a prime (1340557) 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, 5714 + ... + 5943.

It is an arithmetic number, because the mean of its divisors is an integer number (209844).

2^1340555 is an apocalyptic number.

1340555 is a deficient number, since it is larger than the sum of its proper divisors (338197).

1340555 is a wasteful number, since it uses less digits than its factorization.

1340555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11685.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 1340555 is about 1157.8233889501. The cubic root of 1340555 is about 110.2625957641.

1340555 divided by its sum of digits (23) gives a palindrome (58285).

Adding to 1340555 its reverse (5550431), we get a palindrome (6890986).

The spelling of 1340555 in words is "one million, three hundred forty thousand, five hundred fifty-five".