68354208 has 72 divisors (see below), whose sum is σ = 209346228. Its totient is φ = 21030912.

The previous prime is 68354177. The next prime is 68354233. The reversal of 68354208 is 80245386.

It can be written as a sum of positive squares in 2 ways, for example, as 62536464 + 5817744 = 7908^2 + 2412^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5385 + ... + 12872.

Almost surely, 2^68354208 is an apocalyptic number.

It is an amenable number.

68354208 is an abundant number, since it is smaller than the sum of its proper divisors (140992020).

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

68354208 is a wasteful number, since it uses less digits than its factorization.

68354208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18286 (or 18275 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 68354208 is about 8267.6603703829. The cubic root of 68354208 is about 408.8729865866.

The spelling of 68354208 in words is "sixty-eight million, three hundred fifty-four thousand, two hundred eight".