4445239653 has 12 divisors (see below), whose sum is σ = 6421658880. Its totient is φ = 2963143656.

The previous prime is 4445239621. The next prime is 4445239697. The reversal of 4445239653 is 3569325444.

It is not a de Polignac number, because 4445239653 - 2⁵ = 4445239621 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4445239599 and 4445239608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4445239453) 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, 68758 + ... + 116696.

It is an arithmetic number, because the mean of its divisors is an integer number (535138240).

Almost surely, 2^4445239653 is an apocalyptic number.

It is an amenable number.

4445239653 is a deficient number, since it is larger than the sum of its proper divisors (1976419227).

4445239653 is a wasteful number, since it uses less digits than its factorization.

4445239653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58248 (or 58245 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The square root of 4445239653 is about 66672.6304640817. The cubic root of 4445239653 is about 1644.2394346864.

The spelling of 4445239653 in words is "four billion, four hundred forty-five million, two hundred thirty-nine thousand, six hundred fifty-three".