240646 has 8 divisors (see below), whose sum is σ = 412560. Its totient is φ = 103128.

The previous prime is 240641. The next prime is 240659. The reversal of 240646 is 646042.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240641) by changing a digit.

240646 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8581 + ... + 8608.

It is an arithmetic number, because the mean of its divisors is an integer number (51570).

2²⁴⁰⁶⁴⁶ is an apocalyptic number.

240646 is a deficient number, since it is larger than the sum of its proper divisors (171914).

240646 is a wasteful number, since it uses less digits than its factorization.

240646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17198.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 240646 is about 490.5568264738. The cubic root of 240646 is about 62.2003577279.

Adding to 240646 its reverse (646042), we get a palindrome (886688).

The spelling of 240646 in words is "two hundred forty thousand, six hundred forty-six".