240540007 has 4 divisors (see below), whose sum is σ = 248834520. Its totient is φ = 232245496.

The previous prime is 240539993. The next prime is 240540073. The reversal of 240540007 is 700045042.

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

It is a cyclic number.

It is not a de Polignac number, because 240540007 - 2⁷ = 240539879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240540007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240540107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4147213 + ... + 4147270.

It is an arithmetic number, because the mean of its divisors is an integer number (62208630).

Almost surely, 2^240540007 is an apocalyptic number.

240540007 is a deficient number, since it is larger than the sum of its proper divisors (8294513).

240540007 is an equidigital number, since it uses as much as digits as its factorization.

240540007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8294512.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 240540007 is about 15509.3522430822. The cubic root of 240540007 is about 621.9122429721.

Adding to 240540007 its reverse (700045042), we get a palindrome (940585049).

The spelling of 240540007 in words is "two hundred forty million, five hundred forty thousand, seven".