340045 has 8 divisors (see below), whose sum is σ = 417024. Its totient is φ = 266064.

The previous prime is 340037. The next prime is 340049. The reversal of 340045 is 540043.

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 340045 - 2³ = 340037 is a prime.

It is a Duffinian number.

340045 is a lucky number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340049) 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, 489 + ... + 958.

It is an arithmetic number, because the mean of its divisors is an integer number (52128).

2³⁴⁰⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

340045 is a deficient number, since it is larger than the sum of its proper divisors (76979).

340045 is a wasteful number, since it uses less digits than its factorization.

340045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 340045 is about 583.1337753895. The cubic root of 340045 is about 69.7983995386.

Adding to 340045 its reverse (540043), we get a palindrome (880088).

The spelling of 340045 in words is "three hundred forty thousand, forty-five".