445812146 has 8 divisors (see below), whose sum is σ = 720158124. Its totient is φ = 205759440.

The previous prime is 445812127. The next prime is 445812161. The reversal of 445812146 is 641218544.

It can be written as a sum of positive squares in 2 ways, for example, as 345030625 + 100781521 = 18575^2 + 10039^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×445812146² = 397496939042250632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8573285 + ... + 8573336.

Almost surely, 2^445812146 is an apocalyptic number.

445812146 is a deficient number, since it is larger than the sum of its proper divisors (274345978).

445812146 is a wasteful number, since it uses less digits than its factorization.

445812146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17146636.

The product of its digits is 30720, while the sum is 35.

The square root of 445812146 is about 21114.2640411642. The cubic root of 445812146 is about 763.9248404723.

The spelling of 445812146 in words is "four hundred forty-five million, eight hundred twelve thousand, one hundred forty-six".