340653 has 8 divisors (see below), whose sum is σ = 474048. Its totient is φ = 217184.

The previous prime is 340649. The next prime is 340657. The reversal of 340653 is 356043.

It is an interprime number because it is at equal distance from previous prime (340649) and next prime (340657).

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 340653 - 2² = 340649 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 340653.

It is not an unprimeable number, because it can be changed into a prime (340657) 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, 2400 + ... + 2537.

It is an arithmetic number, because the mean of its divisors is an integer number (59256).

2³⁴⁰⁶⁵³ is an apocalyptic number.

It is an amenable number.

340653 is a deficient number, since it is larger than the sum of its proper divisors (133395).

340653 is a wasteful number, since it uses less digits than its factorization.

340653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4963.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 340653 is about 583.6548637680. The cubic root of 340653 is about 69.8399745843.

Adding to 340653 its reverse (356043), we get a palindrome (696696).

The spelling of 340653 in words is "three hundred forty thousand, six hundred fifty-three".