446021145 has 12 divisors (see below), whose sum is σ = 773103396. Its totient is φ = 237877920.

The previous prime is 446021141. The next prime is 446021159. The reversal of 446021145 is 541120644.

446021145 is a `hidden beast` number, since 4 + 4 + 602 + 11 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 264095001 + 181926144 = 16251^2 + 13488^2 .

It is not a de Polignac number, because 446021145 - 2² = 446021141 is a prime.

It is a super-2 number, since 2×446021145² = 397869723574222050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (446021141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4955746 + ... + 4955835.

It is an arithmetic number, because the mean of its divisors is an integer number (64425283).

Almost surely, 2^446021145 is an apocalyptic number.

446021145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

446021145 is a deficient number, since it is larger than the sum of its proper divisors (327082251).

446021145 is a wasteful number, since it uses less digits than its factorization.

446021145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9911592 (or 9911589 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 446021145 is about 21119.2126983938. The cubic root of 446021145 is about 764.0441991050.

Adding to 446021145 its reverse (541120644), we get a palindrome (987141789).

The spelling of 446021145 in words is "four hundred forty-six million, twenty-one thousand, one hundred forty-five".