445224213 has 24 divisors (see below), whose sum is σ = 736070400. Its totient is φ = 254034144.

The previous prime is 445224209. The next prime is 445224217. The reversal of 445224213 is 312422544.

445224213 is a `hidden beast` number, since 445 + 2 + 2 + 4 + 213 = 666.

It is an interprime number because it is at equal distance from previous prime (445224209) and next prime (445224217).

It is not a de Polignac number, because 445224213 - 2² = 445224209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445224217) 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 in 23 ways as a sum of consecutive naturals, for example, 40383 + ... + 50211.

It is an arithmetic number, because the mean of its divisors is an integer number (30669600).

Almost surely, 2^445224213 is an apocalyptic number.

It is an amenable number.

445224213 is a deficient number, since it is larger than the sum of its proper divisors (290846187).

445224213 is a wasteful number, since it uses less digits than its factorization.

445224213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10561 (or 10558 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 445224213 is about 21100.3367982599. The cubic root of 445224213 is about 763.5888736971.

Adding to 445224213 its reverse (312422544), we get a palindrome (757646757).

The spelling of 445224213 in words is "four hundred forty-five million, two hundred twenty-four thousand, two hundred thirteen".