212403308 has 48 divisors (see below), whose sum is σ = 419338080. Its totient is φ = 93456384.

The previous prime is 212403307. The next prime is 212403311. The reversal of 212403308 is 803304212.

212403308 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212403307) 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 in 15 ways as a sum of consecutive naturals, for example, 124316 + ... + 126012.

It is an arithmetic number, because the mean of its divisors is an integer number (8736210).

Almost surely, 2^212403308 is an apocalyptic number.

It is an amenable number.

212403308 is a deficient number, since it is larger than the sum of its proper divisors (206934772).

212403308 is a wasteful number, since it uses less digits than its factorization.

212403308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826 (or 1824 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 212403308 is about 14574.0628515181. The cubic root of 212403308 is about 596.6510722112.

The spelling of 212403308 in words is "two hundred twelve million, four hundred three thousand, three hundred eight".