445545386 has 32 divisors (see below), whose sum is σ = 812246400. Its totient is φ = 180492480.

The previous prime is 445545371. The next prime is 445545389. The reversal of 445545386 is 683545544.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (445545389) 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 15 ways as a sum of consecutive naturals, for example, 18566 + ... + 35153.

It is an arithmetic number, because the mean of its divisors is an integer number (25382700).

Almost surely, 2^445545386 is an apocalyptic number.

445545386 is a deficient number, since it is larger than the sum of its proper divisors (366701014).

445545386 is a wasteful number, since it uses less digits than its factorization.

445545386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53774.

The product of its digits is 1152000, while the sum is 44.

The square root of 445545386 is about 21107.9460393474. The cubic root of 445545386 is about 763.7724405195.

The spelling of 445545386 in words is "four hundred forty-five million, five hundred forty-five thousand, three hundred eighty-six".