2442721518 has 24 divisors (see below), whose sum is σ = 5300845056. Its totient is φ = 812966400.

The previous prime is 2442721513. The next prime is 2442721543. The reversal of 2442721518 is 8151272442.

2442721518 is a `hidden beast` number, since 2 + 4 + 427 + 215 + 18 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2442721513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94318 + ... + 117393.

It is an arithmetic number, because the mean of its divisors is an integer number (220868544).

Almost surely, 2^2442721518 is an apocalyptic number.

2442721518 is an abundant number, since it is smaller than the sum of its proper divisors (2858123538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2442721518 is a wasteful number, since it uses less digits than its factorization.

2442721518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212360 (or 212357 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 2442721518 is about 49423.8962243974. The cubic root of 2442721518 is about 1346.7634434285.

The spelling of 2442721518 in words is "two billion, four hundred forty-two million, seven hundred twenty-one thousand, five hundred eighteen".