2442660309 has 6 divisors (see below), whose sum is σ = 3528287126. Its totient is φ = 1628440200.

The previous prime is 2442660299. The next prime is 2442660323. The reversal of 2442660309 is 9030662442.

2442660309 is a `hidden beast` number, since 2 + 4 + 42 + 6 + 603 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1646574084 + 796086225 = 40578^2 + 28215^2 .

It is not a de Polignac number, because 2442660309 - 2⁴ = 2442660293 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 (2442660379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135703342 + ... + 135703359.

Almost surely, 2^2442660309 is an apocalyptic number.

It is an amenable number.

2442660309 is a deficient number, since it is larger than the sum of its proper divisors (1085626817).

2442660309 is a wasteful number, since it uses less digits than its factorization.

2442660309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271406707 (or 271406704 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 2442660309 is about 49423.2769957638. The cubic root of 2442660309 is about 1346.7521943999.

It can be divided in two parts, 2442660 and 309, that added together give a square (2442969 = 1563²).

The spelling of 2442660309 in words is "two billion, four hundred forty-two million, six hundred sixty thousand, three hundred nine".