68804406 has 48 divisors (see below), whose sum is σ = 172203408. Its totient is φ = 19622400.

The previous prime is 68804399. The next prime is 68804459. The reversal of 68804406 is 60440886.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6855 + ... + 13586.

It is an arithmetic number, because the mean of its divisors is an integer number (3587571).

Almost surely, 2^68804406 is an apocalyptic number.

68804406 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

68804406 is an abundant number, since it is smaller than the sum of its proper divisors (103399002).

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

68804406 is a wasteful number, since it uses less digits than its factorization.

68804406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20477 (or 20474 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 68804406 is about 8294.8421323133. The cubic root of 68804406 is about 409.7686698207.

The spelling of 68804406 in words is "sixty-eight million, eight hundred four thousand, four hundred six".