445164938 has 12 divisors (see below), whose sum is σ = 674345430. Its totient is φ = 220386096.

The previous prime is 445164919. The next prime is 445164953. The reversal of 445164938 is 839461544.

It can be written as a sum of positive squares in 3 ways, for example, as 209757289 + 235407649 = 14483^2 + 15343^2 .

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

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 310808 + ... + 312236.

Almost surely, 2^445164938 is an apocalyptic number.

445164938 is a deficient number, since it is larger than the sum of its proper divisors (229180492).

445164938 is an equidigital number, since it uses as much as digits as its factorization.

445164938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2969 (or 1540 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The square root of 445164938 is about 21098.9321530735. The cubic root of 445164938 is about 763.5549853491.

The spelling of 445164938 in words is "four hundred forty-five million, one hundred sixty-four thousand, nine hundred thirty-eight".