445531214 has 4 divisors (see below), whose sum is σ = 668296824. Its totient is φ = 222765606.

The previous prime is 445531211. The next prime is 445531231. The reversal of 445531214 is 412135544.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445531211) by changing a digit.

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 as a sum of consecutive naturals, namely, 111382802 + ... + 111382805.

It is an arithmetic number, because the mean of its divisors is an integer number (167074206).

Almost surely, 2^445531214 is an apocalyptic number.

445531214 is a deficient number, since it is larger than the sum of its proper divisors (222765610).

445531214 is a wasteful number, since it uses less digits than its factorization.

445531214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222765609.

The product of its digits is 9600, while the sum is 29.

The square root of 445531214 is about 21107.6103337161. The cubic root of 445531214 is about 763.7643423563.

Adding to 445531214 its reverse (412135544), we get a palindrome (857666758).

The spelling of 445531214 in words is "four hundred forty-five million, five hundred thirty-one thousand, two hundred fourteen".