4405645072 has 10 divisors (see below), whose sum is σ = 8535937358. Its totient is φ = 2202822528.

The previous prime is 4405645067. The next prime is 4405645129. The reversal of 4405645072 is 2705465044.

It can be written as a sum of positive squares in only one way, i.e., 4400464896 + 5180176 = 66336^2 + 2276^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 137676393 + ... + 137676424.

Almost surely, 2^4405645072 is an apocalyptic number.

It is an amenable number.

4405645072 is a deficient number, since it is larger than the sum of its proper divisors (4130292286).

4405645072 is a wasteful number, since it uses less digits than its factorization.

4405645072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275352825 (or 275352819 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 37.

The square root of 4405645072 is about 66375.0334990499. The cubic root of 4405645072 is about 1639.3430186262.

The spelling of 4405645072 in words is "four billion, four hundred five million, six hundred forty-five thousand, seventy-two".