340654 has 4 divisors (see below), whose sum is σ = 510984. Its totient is φ = 170326.

The previous prime is 340649. The next prime is 340657. The reversal of 340654 is 456043.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 340654.

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 as a sum of consecutive naturals, namely, 85162 + ... + 85165.

It is an arithmetic number, because the mean of its divisors is an integer number (127746).

2³⁴⁰⁶⁵⁴ is an apocalyptic number.

340654 is a deficient number, since it is larger than the sum of its proper divisors (170330).

340654 is a wasteful number, since it uses less digits than its factorization.

340654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170329.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 340654 is about 583.6557204380. The cubic root of 340654 is about 69.8400429236.

Adding to 340654 its reverse (456043), we get a palindrome (796697).

The spelling of 340654 in words is "three hundred forty thousand, six hundred fifty-four".