240536013 has 4 divisors (see below), whose sum is σ = 320714688. Its totient is φ = 160357340.

The previous prime is 240535987. The next prime is 240536033. The reversal of 240536013 is 310635042.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 240536013 - 2¹² = 240531917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240536033) 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, 40089333 + ... + 40089338.

It is an arithmetic number, because the mean of its divisors is an integer number (80178672).

Almost surely, 2^240536013 is an apocalyptic number.

It is an amenable number.

240536013 is a deficient number, since it is larger than the sum of its proper divisors (80178675).

240536013 is an equidigital number, since it uses as much as digits as its factorization.

240536013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80178674.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 240536013 is about 15509.2234815287. The cubic root of 240536013 is about 621.9088008126.

The spelling of 240536013 in words is "two hundred forty million, five hundred thirty-six thousand, thirteen".