445539923 has 8 divisors (see below), whose sum is σ = 465816096. Its totient is φ = 425339200.

The previous prime is 445539917. The next prime is 445539929. The reversal of 445539923 is 329935544.

It is an interprime number because it is at equal distance from previous prime (445539917) and next prime (445539929).

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 445539923 - 2²⁶ = 378431059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445539929) 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, 6608 + ... + 30573.

It is an arithmetic number, because the mean of its divisors is an integer number (58227012).

Almost surely, 2^445539923 is an apocalyptic number.

445539923 is a deficient number, since it is larger than the sum of its proper divisors (20276173).

445539923 is a wasteful number, since it uses less digits than its factorization.

445539923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37725.

The product of its digits is 583200, while the sum is 44.

The square root of 445539923 is about 21107.8166327074. The cubic root of 445539923 is about 763.7693188728.

The spelling of 445539923 in words is "four hundred forty-five million, five hundred thirty-nine thousand, nine hundred twenty-three".