240506 has 16 divisors (see below), whose sum is σ = 423360. Its totient is φ = 100320.

The previous prime is 240503. The next prime is 240509. The reversal of 240506 is 605042.

It is an interprime number because it is at equal distance from previous prime (240503) and next prime (240509).

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (240503) 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, 365 + ... + 783.

It is an arithmetic number, because the mean of its divisors is an integer number (26460).

2²⁴⁰⁵⁰⁶ is an apocalyptic number.

240506 is a deficient number, since it is larger than the sum of its proper divisors (182854).

240506 is a wasteful number, since it uses less digits than its factorization.

240506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 240506 is about 490.4141107268. The cubic root of 240506 is about 62.1882933411.

Adding to 240506 its reverse (605042), we get a palindrome (845548).

The spelling of 240506 in words is "two hundred forty thousand, five hundred six".