1340342 has 8 divisors (see below), whose sum is σ = 2023056. Its totient is φ = 665992.

The previous prime is 1340333. The next prime is 1340357. The reversal of 1340342 is 2430431.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1340342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1673 + ... + 2340.

It is an arithmetic number, because the mean of its divisors is an integer number (252882).

2^1340342 is an apocalyptic number.

1340342 is a deficient number, since it is larger than the sum of its proper divisors (682714).

1340342 is a wasteful number, since it uses less digits than its factorization.

1340342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4182.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1340342 is about 1157.7314023555. The cubic root of 1340342 is about 110.2567556016.

Adding to 1340342 its reverse (2430431), we get a palindrome (3770773).

The spelling of 1340342 in words is "one million, three hundred forty thousand, three hundred forty-two".