240540215 has 8 divisors (see below), whose sum is σ = 289677168. Its totient is φ = 191746240.

The previous prime is 240540203. The next prime is 240540229. The reversal of 240540215 is 512045042.

It is a happy number.

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

It is not a de Polignac number, because 240540215 - 2⁴ = 240540199 is a prime.

It is a Duffinian number.

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, 84197 + ... + 87006.

It is an arithmetic number, because the mean of its divisors is an integer number (36209646).

Almost surely, 2^240540215 is an apocalyptic number.

240540215 is a deficient number, since it is larger than the sum of its proper divisors (49136953).

240540215 is a wasteful number, since it uses less digits than its factorization.

240540215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171489.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 240540215 is about 15509.3589487122. The cubic root of 240540215 is about 621.9124222322.

Adding to 240540215 its reverse (512045042), we get a palindrome (752585257).

The spelling of 240540215 in words is "two hundred forty million, five hundred forty thousand, two hundred fifteen".