2444645442 has 8 divisors (see below), whose sum is σ = 4889290896. Its totient is φ = 814881812.

The previous prime is 2444645429. The next prime is 2444645443. The reversal of 2444645442 is 2445464442.

It is a sphenic number, since it is the product of 3 distinct primes.

2444645442 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2444645442.

It is not an unprimeable number, because it can be changed into a prime (2444645443) 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 3 ways as a sum of consecutive naturals, for example, 203720448 + ... + 203720459.

It is an arithmetic number, because the mean of its divisors is an integer number (611161362).

Almost surely, 2^2444645442 is an apocalyptic number.

2444645442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2444645442 is a wasteful number, since it uses less digits than its factorization.

2444645442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407440912.

The product of its digits is 491520, while the sum is 39.

The square root of 2444645442 is about 49443.3558933857. The cubic root of 2444645442 is about 1347.1169276515.

The spelling of 2444645442 in words is "two billion, four hundred forty-four million, six hundred forty-five thousand, four hundred forty-two".