68210308 has 12 divisors (see below), whose sum is σ = 120527680. Its totient is φ = 33773832.

The previous prime is 68210299. The next prime is 68210309. The reversal of 68210308 is 80301286.

It is a super-2 number, since 2×68210308² = 9305292234909728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68210309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82368 + ... + 83191.

Almost surely, 2^68210308 is an apocalyptic number.

It is an amenable number.

68210308 is a deficient number, since it is larger than the sum of its proper divisors (52317372).

68210308 is a wasteful number, since it uses less digits than its factorization.

68210308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165666 (or 165664 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 68210308 is about 8258.9532024343. The cubic root of 68210308 is about 408.5858637656.

The spelling of 68210308 in words is "sixty-eight million, two hundred ten thousand, three hundred eight".