212450768 has 20 divisors (see below), whose sum is σ = 435837060. Its totient is φ = 99976704.

The previous prime is 212450713. The next prime is 212450779. The reversal of 212450768 is 867054212.

It can be written as a sum of positive squares in 2 ways, for example, as 169312144 + 43138624 = 13012^2 + 6568^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390263 + ... + 390806.

It is an arithmetic number, because the mean of its divisors is an integer number (21791853).

Almost surely, 2^212450768 is an apocalyptic number.

It is an amenable number.

212450768 is an abundant number, since it is smaller than the sum of its proper divisors (223386292).

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

212450768 is a wasteful number, since it uses less digits than its factorization.

212450768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781094 (or 781088 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 212450768 is about 14575.6909956269. The cubic root of 212450768 is about 596.6955080400.

The spelling of 212450768 in words is "two hundred twelve million, four hundred fifty thousand, seven hundred sixty-eight".