240440255 has 8 divisors (see below), whose sum is σ = 314758224. Its totient is φ = 174865600.

The previous prime is 240440243. The next prime is 240440261. The reversal of 240440255 is 552044042.

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

It is not a de Polignac number, because 240440255 - 2⁶ = 240440191 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2185766 + ... + 2185875.

It is an arithmetic number, because the mean of its divisors is an integer number (39344778).

Almost surely, 2^240440255 is an apocalyptic number.

240440255 is a deficient number, since it is larger than the sum of its proper divisors (74317969).

240440255 is a wasteful number, since it uses less digits than its factorization.

240440255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4371657.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 240440255 is about 15506.1360435152. The cubic root of 240440255 is about 621.8262620323.

Adding to 240440255 its reverse (552044042), we get a palindrome (792484297).

The spelling of 240440255 in words is "two hundred forty million, four hundred forty thousand, two hundred fifty-five".