812224016 has 10 divisors (see below), whose sum is σ = 1573684062. Its totient is φ = 406112000.

The previous prime is 812224013. The next prime is 812224069. The reversal of 812224016 is 610422218.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 499075600 + 313148416 = 22340^2 + 17696^2 .

It is not an unprimeable number, because it can be changed into a prime (812224013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25381985 + ... + 25382016.

Almost surely, 2^812224016 is an apocalyptic number.

It is an amenable number.

812224016 is a deficient number, since it is larger than the sum of its proper divisors (761460046).

812224016 is a wasteful number, since it uses less digits than its factorization.

812224016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50764009 (or 50764003 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 812224016 is about 28499.5441367051. The cubic root of 812224016 is about 933.0221245874.

The spelling of 812224016 in words is "eight hundred twelve million, two hundred twenty-four thousand, sixteen".