445481506 has 16 divisors (see below), whose sum is σ = 680251680. Its totient is φ = 218738880.

The previous prime is 445481473. The next prime is 445481537. The reversal of 445481506 is 605184544.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205066 + ... + 207226.

It is an arithmetic number, because the mean of its divisors is an integer number (42515730).

Almost surely, 2^445481506 is an apocalyptic number.

445481506 is a deficient number, since it is larger than the sum of its proper divisors (234770174).

445481506 is a wasteful number, since it uses less digits than its factorization.

445481506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3969.

The product of its (nonzero) digits is 76800, while the sum is 37.

The square root of 445481506 is about 21106.4328108755. The cubic root of 445481506 is about 763.7359368568.

The spelling of 445481506 in words is "four hundred forty-five million, four hundred eighty-one thousand, five hundred six".