2444574721 has 8 divisors (see below), whose sum is σ = 2599486344. Its totient is φ = 2290897920.

The previous prime is 2444574701. The next prime is 2444574739. The reversal of 2444574721 is 1274754442.

It can be written as a sum of positive squares in 4 ways, for example, as 261121 + 2444313600 = 511^2 + 49440^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2444574721 - 2⁵ = 2444574689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2444574701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304620 + ... + 312541.

It is an arithmetic number, because the mean of its divisors is an integer number (324935793).

Almost surely, 2^2444574721 is an apocalyptic number.

It is an amenable number.

2444574721 is a deficient number, since it is larger than the sum of its proper divisors (154911623).

2444574721 is a wasteful number, since it uses less digits than its factorization.

2444574721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617411.

The product of its digits is 250880, while the sum is 40.

The square root of 2444574721 is about 49442.6407162886. The cubic root of 2444574721 is about 1347.1039373049.

The spelling of 2444574721 in words is "two billion, four hundred forty-four million, five hundred seventy-four thousand, seven hundred twenty-one".