445075641 has 28 divisors (see below), whose sum is σ = 676785600. Its totient is φ = 292503960.

The previous prime is 445075633. The next prime is 445075661. The reversal of 445075641 is 146570544.

445075641 is a `hidden beast` number, since 4 + 4 + 5 + 0 + 7 + 5 + 641 = 666.

It is not a de Polignac number, because 445075641 - 2³ = 445075633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 445075596 and 445075605.

It is not an unprimeable number, because it can be changed into a prime (445075601) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 47460 + ... + 56058.

Almost surely, 2^445075641 is an apocalyptic number.

It is an amenable number.

445075641 is a deficient number, since it is larger than the sum of its proper divisors (231709959).

445075641 is an frugal number, since it uses more digits than its factorization.

445075641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8688 (or 8673 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 445075641 is about 21096.8158971917. The cubic root of 445075641 is about 763.5039273230.

The spelling of 445075641 in words is "four hundred forty-five million, seventy-five thousand, six hundred forty-one".