445144522 has 16 divisors (see below), whose sum is σ = 672831432. Its totient is φ = 220872960.

The previous prime is 445144489. The next prime is 445144529. The reversal of 445144522 is 225441544.

It can be written as a sum of positive squares in 4 ways, for example, as 163609681 + 281534841 = 12791^2 + 16779^2 .

It is not an unprimeable number, because it can be changed into a prime (445144529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222358 + ... + 224350.

Almost surely, 2^445144522 is an apocalyptic number.

445144522 is a deficient number, since it is larger than the sum of its proper divisors (227686910).

445144522 is a wasteful number, since it uses less digits than its factorization.

445144522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793.

The product of its digits is 25600, while the sum is 31.

The square root of 445144522 is about 21098.4483315717. The cubic root of 445144522 is about 763.5433125393.

The spelling of 445144522 in words is "four hundred forty-five million, one hundred forty-four thousand, five hundred twenty-two".