445787020 has 48 divisors (see below), whose sum is σ = 1094784768. Its totient is φ = 149284800.

The previous prime is 445787011. The next prime is 445787021. The reversal of 445787020 is 20787544.

It is not an unprimeable number, because it can be changed into a prime (445787021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31006 + ... + 43045.

It is an arithmetic number, because the mean of its divisors is an integer number (22808016).

Almost surely, 2^445787020 is an apocalyptic number.

It is an amenable number.

445787020 is an abundant number, since it is smaller than the sum of its proper divisors (648997748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445787020 is a wasteful number, since it uses less digits than its factorization.

445787020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74110 (or 74108 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 37.

The square root of 445787020 is about 21113.6690321697. The cubic root of 445787020 is about 763.9104885857.

The spelling of 445787020 in words is "four hundred forty-five million, seven hundred eighty-seven thousand, twenty".