445440879 has 12 divisors (see below), whose sum is σ = 692908216. Its totient is φ = 274117392.

The previous prime is 445440847. The next prime is 445440889. The reversal of 445440879 is 978044544.

It is not a de Polignac number, because 445440879 - 2⁵ = 445440847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445440889) 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, 1903477 + ... + 1903710.

Almost surely, 2^445440879 is an apocalyptic number.

445440879 is a deficient number, since it is larger than the sum of its proper divisors (247467337).

445440879 is a wasteful number, since it uses less digits than its factorization.

445440879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807206 (or 3807203 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 445440879 is about 21105.4703572320. The cubic root of 445440879 is about 763.7127191005.

The spelling of 445440879 in words is "four hundred forty-five million, four hundred forty thousand, eight hundred seventy-nine".