445745505 has 16 divisors (see below), whose sum is σ = 717572160. Its totient is φ = 236271168.

The previous prime is 445745501. The next prime is 445745527. The reversal of 445745505 is 505547544.

It is not a de Polignac number, because 445745505 - 2² = 445745501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (445745501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88710 + ... + 93599.

It is an arithmetic number, because the mean of its divisors is an integer number (44848260).

Almost surely, 2^445745505 is an apocalyptic number.

It is an amenable number.

445745505 is a deficient number, since it is larger than the sum of its proper divisors (271826655).

445745505 is a wasteful number, since it uses less digits than its factorization.

445745505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182480.

The product of its (nonzero) digits is 280000, while the sum is 39.

The square root of 445745505 is about 21112.6858784002. The cubic root of 445745505 is about 763.8867741757.

The spelling of 445745505 in words is "four hundred forty-five million, seven hundred forty-five thousand, five hundred five".