450205212 has 12 divisors (see below), whose sum is σ = 1050478856. Its totient is φ = 150068400.

The previous prime is 450205201. The next prime is 450205213. The reversal of 450205212 is 212502054.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450205213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18758539 + ... + 18758562.

Almost surely, 2^450205212 is an apocalyptic number.

It is an amenable number.

450205212 is an abundant number, since it is smaller than the sum of its proper divisors (600273644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

450205212 is a wasteful number, since it uses less digits than its factorization.

450205212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37517108 (or 37517106 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 450205212 is about 21218.0397775101. The cubic root of 450205212 is about 766.4259005365.

Adding to 450205212 its reverse (212502054), we get a palindrome (662707266).

The spelling of 450205212 in words is "four hundred fifty million, two hundred five thousand, two hundred twelve".