242044513405 has 16 divisors (see below), whose sum is σ = 292164176304. Its totient is φ = 192495882240.

The previous prime is 242044513369. The next prime is 242044513409. The reversal of 242044513405 is 504315440242.

It can be written as a sum of positive squares in 8 ways, for example, as 147804109209 + 94240404196 = 384453^2 + 306986^2 .

It is not a de Polignac number, because 242044513405 - 2⁹ = 242044512893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242044513409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2520349 + ... + 2614621.

It is an arithmetic number, because the mean of its divisors is an integer number (18260261019).

Almost surely, 2^242044513405 is an apocalyptic number.

It is an amenable number.

242044513405 is a deficient number, since it is larger than the sum of its proper divisors (50119662899).

242044513405 is a wasteful number, since it uses less digits than its factorization.

242044513405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97296.

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 242044513405 its reverse (504315440242), we get a palindrome (746359953647).

The spelling of 242044513405 in words is "two hundred forty-two billion, forty-four million, five hundred thirteen thousand, four hundred five".