2442649815 has 12 divisors (see below), whose sum is σ = 4233926424. Its totient is φ = 1302746544.

The previous prime is 2442649763. The next prime is 2442649817. The reversal of 2442649815 is 5189462442.

It is a happy number.

It is not a de Polignac number, because 2442649815 - 2⁹ = 2442649303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 54281107 = 2442649815 / (2 + 4 + 4 + 2 + 6 + 4 + 9 + 8 + 1 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2442649817) 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, 27140509 + ... + 27140598.

It is an arithmetic number, because the mean of its divisors is an integer number (352827202).

Almost surely, 2^2442649815 is an apocalyptic number.

2442649815 is a deficient number, since it is larger than the sum of its proper divisors (1791276609).

2442649815 is a wasteful number, since it uses less digits than its factorization.

2442649815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54281118 (or 54281115 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 2442649815 is about 49423.1708310991. The cubic root of 2442649815 is about 1346.7502657872.

The spelling of 2442649815 in words is "two billion, four hundred forty-two million, six hundred forty-nine thousand, eight hundred fifteen".