340993 has 8 divisors (see below), whose sum is σ = 364320. Its totient is φ = 318240.

The previous prime is 340979. The next prime is 340999. The reversal of 340993 is 399043.

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 340993 - 2⁹ = 340481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340999) 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, 2421 + ... + 2557.

It is an arithmetic number, because the mean of its divisors is an integer number (45540).

It is a Proth number, since it is equal to 333 ⋅ 2¹⁰ + 1 and 333 < 2¹⁰.

2³⁴⁰⁹⁹³ is an apocalyptic number.

It is an amenable number.

340993 is a deficient number, since it is larger than the sum of its proper divisors (23327).

340993 is a wasteful number, since it uses less digits than its factorization.

340993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 340993 is about 583.9460591527. The cubic root of 340993 is about 69.8632022243.

The spelling of 340993 in words is "three hundred forty thousand, nine hundred ninety-three".