455630212 has 12 divisors (see below), whose sum is σ = 816800796. Its totient is φ = 222258560.

The previous prime is 455630177. The next prime is 455630213. The reversal of 455630212 is 212036554.

It can be written as a sum of positive squares in 2 ways, for example, as 56190016 + 399440196 = 7496^2 + 19986^2 .

It is not an unprimeable number, because it can be changed into a prime (455630213) 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 3 ways as a sum of consecutive naturals, for example, 1388953 + ... + 1389280.

It is an arithmetic number, because the mean of its divisors is an integer number (68066733).

Almost surely, 2^455630212 is an apocalyptic number.

It is an amenable number.

455630212 is a deficient number, since it is larger than the sum of its proper divisors (361170584).

455630212 is a wasteful number, since it uses less digits than its factorization.

455630212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2778278 (or 2778276 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 455630212 is about 21345.4962931294. The cubic root of 455630212 is about 769.4921101150.

Adding to 455630212 its reverse (212036554), we get a palindrome (667666766).

The spelling of 455630212 in words is "four hundred fifty-five million, six hundred thirty thousand, two hundred twelve".