4445540287 has 4 divisors (see below), whose sum is σ = 4446828216. Its totient is φ = 4444252360.

The previous prime is 4445540243. The next prime is 4445540291. The reversal of 4445540287 is 7820455444.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4445540287 - 2⁷ = 4445540159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4445540387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638773 + ... + 645694.

It is an arithmetic number, because the mean of its divisors is an integer number (1111707054).

Almost surely, 2^4445540287 is an apocalyptic number.

4445540287 is a deficient number, since it is larger than the sum of its proper divisors (1287929).

4445540287 is a wasteful number, since it uses less digits than its factorization.

4445540287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287928.

The product of its (nonzero) digits is 716800, while the sum is 43.

The square root of 4445540287 is about 66674.8849792784. The cubic root of 4445540287 is about 1644.2765007896.

The spelling of 4445540287 in words is "four billion, four hundred forty-five million, five hundred forty thousand, two hundred eighty-seven".