212104818 has 40 divisors (see below), whose sum is σ = 503235612. Its totient is φ = 66541824.

The previous prime is 212104817. The next prime is 212104829. The reversal of 212104818 is 818401212.

212104818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 174319209 + 37785609 = 13203^2 + 6147^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 212104791 and 212104800.

It is not an unprimeable number, because it can be changed into a prime (212104817) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35755 + ... + 41262.

Almost surely, 2^212104818 is an apocalyptic number.

212104818 is an abundant number, since it is smaller than the sum of its proper divisors (291130794).

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

212104818 is a wasteful number, since it uses less digits than its factorization.

212104818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77048 (or 77039 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 212104818 is about 14563.8187986531. The cubic root of 212104818 is about 596.3714502809.

The spelling of 212104818 in words is "two hundred twelve million, one hundred four thousand, eight hundred eighteen".