240405113 has 4 divisors (see below), whose sum is σ = 258897828. Its totient is φ = 221912400.

The previous prime is 240405097. The next prime is 240405161. The reversal of 240405113 is 311504042.

240405113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 140944384 + 99460729 = 11872^2 + 9973^2 .

It is a cyclic number.

It is not a de Polignac number, because 240405113 - 2⁴ = 240405097 is a prime.

It is a super-3 number, since 3×240405113³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240405163) 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, 9246338 + ... + 9246363.

It is an arithmetic number, because the mean of its divisors is an integer number (64724457).

Almost surely, 2^240405113 is an apocalyptic number.

It is an amenable number.

240405113 is a deficient number, since it is larger than the sum of its proper divisors (18492715).

240405113 is a wasteful number, since it uses less digits than its factorization.

240405113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18492714.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 240405113 is about 15505.0028377940. The cubic root of 240405113 is about 621.7959658253.

Adding to 240405113 its reverse (311504042), we get a palindrome (551909155).

The spelling of 240405113 in words is "two hundred forty million, four hundred five thousand, one hundred thirteen".