1340283 has 8 divisors (see below), whose sum is σ = 2042368. Its totient is φ = 765864.

The previous prime is 1340281. The next prime is 1340291. The reversal of 1340283 is 3820431.

It is a happy number.

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

It is not a de Polignac number, because 1340283 - 2¹ = 1340281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 63823 = 1340283 / (1 + 3 + 4 + 0 + 2 + 8 + 3).

It is a Duffinian number.

1340283 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1340281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31891 + ... + 31932.

It is an arithmetic number, because the mean of its divisors is an integer number (255296).

2^1340283 is an apocalyptic number.

1340283 is a deficient number, since it is larger than the sum of its proper divisors (702085).

1340283 is an equidigital number, since it uses as much as digits as its factorization.

1340283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63833.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1340283 is about 1157.7059212080. The cubic root of 1340283 is about 110.2551377946.

The spelling of 1340283 in words is "one million, three hundred forty thousand, two hundred eighty-three".